Yup from Toronto airsoft. And everything looks brand new not scratch anywhere not even in the magwell.

Not that care I prefer the short mags anyway but a mystery none the least.

On another note if your tired of the leaky fill valves on the mags they are cross compatible with WE hicappa fill valves which I've found to far superior to the stock kjw valves.

Not sure if someone posted this yet, but the RAA Tech NPAS valve for KJ M4s that we have is also suitable for the 10/22s :)

Ken

Can anyone give a reasonable guess as to what to expect for range on these with stock parts? Using bastard .30's I plan on using it as a sniper rifle and was hoping to outrange aeg's without upgrading is this possible?

I haven't been able to get somewhere to test the range yet...

Pretty much, yes.

Sweeeeeeeeeet thanks

Bump up to .36

But yes you can indeed

If you want to upgrade. Put the ratech inner in it and the ratech hop

With that and .36. I was getting 250 feet easy before the bb started to drop

What length inner did you put in? I was debating between the 380mm and the 510mm. I emailed Ratach to see if I can get the 510 outer and 510 inner in one package.

My first 02 I put the 380 in and was getting 250ft I sold that 02 as it was version 2 and I wanted Version 1 have put in the 510 in my latest edition. have not ranged it yet but I ma expecting more then 250feet easy..

I am also considering purchasing the real steel bullpup body and putting my KC02 in there... I am a bullpup kind of guy..... :D so will see if that happens.

Word for the wise. The bullpup body is prohib in Canada.

kc02
 

picked mine up for $225, plus $25 each for two spare mags from 007. gun is great. new stock slid on no issues. firing 440fps down to 390 by end of mag. thinking about getting co2 mag as well...

Finally got around to modifying my Hogue overmould stock. It should have been easy if Cabela's hadn't sent me the tapered version..

http://i24.photobucket.com/albums/c2...psf080502a.jpg

http://i24.photobucket.com/albums/c2...ps0de31978.jpg

Very nicely done/\

I just got MY KC02 today, i fired off about just about 100 rounds with it, it rocks!

lots of people on this thread infleunced me on this one, and i dont think i will be dissapointed! taking a closer look, it seems as though there is very little moving parts on it and the design is so simplistic i believe it will last.

anyone have any suggestions for upgrades?

A full length tightbore and mags, lots of mags.. I only plan on replacing other internals when they go, which may never happen.

Sounds like a good idea, i heard with the new hopup and tightbore that it may shoot a little too hot with duster for CQB, have heard of people shooting 360-400 on duster with these upgrades, i would need a NPAS before i do this?

Hey dudes and dudettes,
Regarding co2 and propane mags, does one shoot hotter than the other?
Thanks :)

CO2 will of course shoot hotter than propane, it always will on any gun.

Buddy bought the wrong mags so just wondering if he's in big shit for the game on 21...I guess he is! I'll lend him my chrono to check I guess. How much hotter? The limit was 400 w/ 2s

They shoot more than 400 with 0.20's in stock form on propane. Mine shot 430-440.

Hell the KC02 on GG shoots over 400...

you are needing an NPAS... RATech carries an NPAS for the 02

I have my KC02 outfitted with an NPAS as I have a crazy stupid FPS with the 510 inner

Good to know thanks

Sent from my SGH-I747M using Tapatalk 2

I just received my 10/22 version 2. In advance i bought the RA TECH 380mm and the RA TECH hop up.

After disassembling the barrel. I noticed that mine has a inner sleeve inside the outer barrel that looks like a inner barrel extension for the stock barrel. I cannot install the 380mm cuz this "built in" inner barrel extension prevents the 380mm from going in. Any idea on how to remove that inner extension so the 380 tbb fits.

Also, this little metal shim fell off the lower receiver. It is about 1cm long and 3 mm wide. I have no idea but when i flipped over the lower, it fell from somewhere? any ideas of were it goes? I think it fell off near the barrel nut but it came from the magwell side underneath the receiver...i think. This is approximately the size.

http://i1183.photobucket.com/albums/.../photo-1-1.jpg

That extension. Silver tube is garbage toss it. The joining piece comes out. Take a long rod and put it down the front of the outer and tap the joiner piece out. Gentile taps should dislodge it

It is a connector for the extremely short inner and the extension piece.

It comes out. Jut tap it out. It fits pretty snug Aall kc02 s have em stock

No idea about the shim thing my version 1. And my old version 2 did not have that part
Will look in the book and see if there is a shim like that. If you bought new there should be a diagram showing an exploded view if you dont have that pm me i have pics of it i can email you

Check out https://www.facebook.com/groups/594291890586119/. For a kc02 facebook page. I have posted the manual there

holy shit someone fell off the roof..

yeah, i looked at the diagram and i can not figure out that came from at all. if something comes up then post a reply. Thanks

#7 in the diagram is the part that is inside the outer barrel that joins the inner to the fake inner / extension piece

it is probably lodged inside the outer barrel..


as far as the metal part just took mine apart and no such part
I would assemble without it and see just hang on to it....

did you buy it new? if not perhaps the old owner lost something in there.. if you did then sorry not sure..

took mine right down to the bolt and no such part in there like that ....

yeah, its' brand new. i think it was near the barrel nut.I'll assemble it to see what happens.

For the new guys who want to remove the inner barrel.

INNER BARREL REMOVAL

The inner barrel consists of 3 parts. An inner barrel (250 mm), a inner barrel connector, an inner barrel sleeve (105mm). You need to remove these 3 things to install a new inner barrel exceeding 250 mm.

1-remove the top rail on the outer barrel. The screws that hold the rail down go through into the outer barrel. This screw over hang will prevent the inner barrel connector from moving.

2- take the old inner barrel, put it in the muzzle end and make sure the old inner barrel is making contact with the inner barrel sleeve.

3. Take a piece of wood and place in on the inner barrel as this is the point where you are going to make contact with the hammer.

4. Gently tap the wood so the inner barrel pushes the sleeve down which pushes the inner barrel connector down.

5- Once the inner barrel moves the sleeve loose enough, take a real cleaning rod or something similar. It will be able to fit now in between the inner barrel sleeve and outer barrel.

6-the cleaning rod should now be in contact only with the inner barrel connector. Gently tap the cleaning rod with the hammer until it is finished.

I have attached a picture to show the new guys what it looks like when removed to get an idea of what to expect.

Thanks for all the PM advice. The picture is off the inner barrel, connector and sleeve along side the outer and new barrel. Thanks

http://i1183.photobucket.com/albums/.../photo-2-1.jpg

I put the new RA TECH hop up in along with the RA TECH TBB. I noticed there is 2 nubs when i look down the barrel. The dial doesnt seem to be moving them up or down too much when i make the adjustments. The hop up is set in correctly. Does the RA TECH hop up need some rounds down it to break in. My VFC SR16 CQB was stiff and wasnt adjusting until about 200 rds. Any Suggestions. Thanks.

Tim Hellsten basically here is a how to change your barrel

CAUTION CAUTION
work over a towel or a mat on a table there are lots of small parts that can and will spring forth and fall out you need them all there are no spare parts in the end of this....

NOTE you don't have to remove every allen bolt from the top rail just to change the inner barrel and hop up rubber.

NOTE if you do remove all the rails then WATCH there is a tiny spring and tiny brass nub thing under the rail.. this nubby and spring provides the clickey resistance you get in the hop dial...

NOTE keep track of what Allen bolt went were on the top rail if you mix them up and put longer ones in behind the hop toward the back of the gun then it will not cock and will not fire.....

1. Remove the 2 Allen screws after the hop up adjustment (toward the front of the rifle) Loosen the one directly before the hop up and remove the one that couples the 2 parts of the rail. You can leave the vack rail on If you remove it heed the earning about the spring and metal nub they will take flight

2. Remove the far back allen bolt NOTE there is a lock washer keep that don't loose it

3. flip the gun over and remove the bottom allen bolt in front of the magwell

4. carefully push up and forward a bit on the trigger guard and the whole assembly will come out leaving you with 2 parts
a. the body
b. the mechanism and barrel

NOTE there are pins in the trigger assembly they will probably just fall out... keep track of them you need them all

5. you will see a silver part on the front of the bolt housing with 2 allen bolts in it... this holds your outer barrel on

6. remove those too bolts and seperate your outer from the bolt housing

you will now see your inner (if stock) - some crappy little aluminum part and a joiner part then the brass tiny inner


NOTE. There is a joiner part that joins the inner barrel to an extension. Sometimes the joiner part fits tight inside the outer barrel. Take a rod and gently tap the joiner part out of the outer barrel It is tapered with the centre thicker then the edges It needs to tap out straight or it will get caught at the end of the barrel where there is a big slot Just be careful


Toss all that crap (so i lied there are spare parts)

7. slide out the inner and hop up assembly

8. undo the threaded retainer nut on the end of the hop up housing and then remove the barrel and hop up rubber from the hop up housing.

9. remove the hop up rubber and change barrels

10. reverse what you did to take it apart and boom new gun

3 spare parts. (assuming stock)

a. 1 mini inner barrel
b. 1 metal barrel joiner thingey
c. 1 aluminum extension part

that is it

here is a video

NPAS KC-02 / Full KC-02 Disassembly ! - YouTube

Recently done some upgrades. Put in RA Tech 510 inner and a falcon hop up rubber here are my FPS Readings

Gun Facts:
KJW KC02
Inner Barrel: RATech 510mm 6.01 TBB
Hop up rubber: Falcon hop up rubber for KC02
BB: .36 WE (green color) BB
Chrono: Xcortech
Mag: Stock short Green Gas Mag
Propellent: Propane mix with AI silicone Oil

Readings .36 BB / Converted to .20 BB
329.4 / 442
385.7 / 517
361.5 / 484
359.2 / 482
383.1 / 514
367.5 / 493
371.4 / 498
372.5 / 500

This weekend I am installing the following:
T.S.C. Steel Reinforced Trigger & Sear for KJW KC02 .22 Rifle
T.S.C. Steel Reinforced Piston for KJW KC02 .22 Rifle
T.S.C. Steel Reinforced Hammer & Strut for KJW KC02 .22 Rifle
T.S.C. Steel Reinforced Fire Pin/Disconnector/Guide Bead for KJW KC02 .22 Rifle
RA Tech Steel Bolt Carrier for KJW KC-02 GBB

as well I am putting in the RA Tech NPAS.. Looks like I will need it :D

I have my best friends KC02 here and did the same test

Gun Facts:
KJW KC02
Inner Barrel: RATech 380mm 6.01 TBB
Hop up rubber: RATECH hop up rubber for KC02
BB: .36 WE (green color) BB
Chrono: Xcortech
Mag: Stock short Green Gas Mag
Propellent: Propane mix with AI silicone Oil

Readings .36 BB / Converted to .20 BB
334.1 / 448
355.7 / 477
319.7 / 428
329.6 / 442
339.1 / 455
328.7 / 441

Testing C02 Vs Green Gas (Propane with Oil)

in prep for all this I wanted to get a bit of a base line on FPS. so I installed the 510 Inner and the stock hop up rubber.

NOTE:
(1): I set the hop up to roughly the middle...
(2): the Hop up was NOT adjusted from first shot to last.
(3): Gun was shot in +21 Degrees C
(4): time between shots 4 sec aprox

here are the results

Using C02 with KJW .2 BB's (most of them shattered against my garbage can)
Readings:
446.8
347.3
378.9
430.9
429.7
429.7
428.4
421.7
358.0
423.1
424.6
410.4

Using C02 with WE .36 BB's
Reading / Convert to .20
345.0 / 463
365.0 / 490
352.0 / 472
361.0 / 484
360.3 / 483
351.5 / 472
331.0 / 444
351.5 / 472
363.4 / 488
385.7 / 517
367.7 / 493
360.6 / 484
358.8 / 481
365.0 / 490
357.5 / 480

Using Green Gas (Propane and Oil) with WE .36 BB's actual reading / converted to .2
262.4 / 352
327.0 / 439
363.5 / 490
363.3 / 487
355.7 / 477
339.6 / 456
355.0 / 476
313.3 / 420
342.4 / 459
330.3 / 443
334.4 / 449
314.8 / 422
354.7 / 476
307.4 / 412
342.2 / 459
320.4 / 430

so the conclusion I draw from these readings is CO2 may be more stable (note these were Canadian Tire C02 cartridges - I am not sure if better C02 would be more consistent. This gun does not perform at all well with .2's meaning Chronoing with .2's at a game will give false results much lower then reality.

the Stock hop rubber was used. which is crap

all readings done on an Xcortech Chrono mounted on a Manfrotto Tripod.

BB's used:
.20 - KJW sample pack
.36 - WE BB's (Green)

I don't have the chrony results like the post above which is informative and much appreciated. Thats the kind of posts i like.

I tried the set up out today with .3s and green gas. Temp was about 8 degrees and damp. Pretty cold. The hop up dial is about 2mm off the rail so its barely in use. When i adjust the hop up i am not even at the click point on the dial. I was hitting a 2x2 target 50m every shot and at 75m maybe 10 out of 30. I didnt chrony it but i brought my VFC SR16 CQB and shot side by side. The gbbr was more accurate at 50m and 75m for sure. my AEG goes 360 fps with .3s. The GBBR was much faster when i side by sided the guns at the same time.

I am going to try the heavier .4 bbs as everybody suggests, hopefully it will be enough to make consistent hits at that 75 m range. I am very happy with the range its at now. Not much more then my AEG but much more accurate and faster for sure.

Ill chrony the results soon

I mentioned that the hop up dial is about 2mm off the rail. The Ra Tech hop up nubs are still exposed in the barrel even with the hop up is all the way off. I had to back off 2mm from the rail like i said to keep it flat at 50m. The hop up can still be adjusted but you don't have the clicks as a reference and the knob is much stiffer to turn so i have to pay attention to how much force i use to turn the knob without over adjusting. When i look down the bore, its 90% barrel and 10% hop up. The dial is not at the click point, which is fine. It is still on the threads so it will stay on.

Overall, a good purchase but the drawback is the mags which doesnt bother me. I prefer mag changing. I use only low caps for my AEG so that transition is not a problem. Mag changes are part of the game. The mags don't like to be cold. 2x30rd out of one mag for this temp was optimal but thats it. Time to get more. I have 4 but a few more would be nice.

I would highly recommend this GBBR. I like the GBBR concept better as opposed to little moving gears and batteries. The mags are more expensive but when you factor in batteries and chargers, it is pretty much the same.

Thanks for the tips and keep them coming.

I'm having a heck of a time finding a V1 10/22, in Canada, USA or HK .. Anyone have any suggestions? I have a local dealer who will import from anywhere.
Thanks!

Yea the Version 1 is hard to find.

they are highly sought after because the version 2 does not have a threaded outer barrel basically that is the only difference that and the stock short mag...

Just keep your eye on the major sights. there are no issues getting this gun in from the USA

Airsplat has them in stock
http://www.airsplat.com/Items/GR-KJW-KC02-B.htm

249.00

Got another question for ya gents, read a lot but may of missed this..
What bore are you guys using? 6.01 or 6.03 or something else?

6.01 510mm RATech inner...

basically your choices are
6.01 380mm RATech
6.01 510mm RATech
6.01 510mm Falcon

if you are getting a 510mm then I personally like the RATech BUT the falcon inner barrel is just as nice and if you get the Kit then you get the Falcon Hopup Rubber + 510mm 6.01 and the barrel extension (which you will want) as a kit for like $80.00

so 6.01 are the way to go...I did a 6.03 but it was rather short
gah why am I doing this, I don't even own this gun hahaha just ordering for another rifle and thought I'd throw these in so save on shipping for later time

Edit: The falcon one comes with inner, outer extension and hopup rubber...

used my 10/22 v2 today. temp was 12 celsius. I have the ra tech 380 tbb and the ra tech hop up. The hop up is installed correctly.

I was using .4 Action Army bbs and the hop up was not doing anything to them. Fully off and on and the bbs would travel 20m and drop off.

I used the .3s and the hop up adjustments were working and i could get out to 75 m easy.

Why would the ra tech hop up not work on the .4s. I know its not a faulty part thing cuz the .3s hopped perfectly.

Has anybody experienced this. I was using propane and the long mags.

fixed my problem. The silicone and propane mixture was a little steep on the silicon side. I guess too much got on the hop up and wasnt allowing it tow work. I took the gbbr apart. Cleaned the barrel, the hop up and chamber and used green gas only and the .4 bbs were bucking out to 75 m nicely.

Moral of the lesson, don't overuse silicon.

The shim is used for the connector with the two allen key screws that holds the outer barrel to the trigger and bolt assembly.

I will tak a picture when i disassemble my

Sent from my SGH-I747M using Tapatalk 2

Got a question for you guys. About how many rounds can 1 co2 cartridge get ?

you will get about 2 perhaps 2.5 mags worth.. BUT this depends how fast you shoot. faster shooting means colder mag = decreased pressure

Heat will play into it too...

in my tests with +22 degrees I have gotten 2 / 2.5 mags

Thanks

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Where the metal shim goes

http://img.tapatalk.com/d/13/06/01/hemygyby.jpg
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Launcher
 

Anyone put a grenade launcher (M-203) on their KC-02? If yes, what did you get and how does it mount? Pics?

Thanks

There are rails on each side of the gun...

Hmmm 203 on a gun that gets 200+ feet with accuracy.... hmmm counter productive I would just drop to a secondary myself....

Anyone know a site for buying aftermarket stocks for a 1022? Wanting to locate a Hogue Overmold stock for it, or something similar.

Got the local gunstore to bring one in for me, Fits nice! Just had to get rid of the tab on the back of the receiver. Too much filing...

Can real steel aftermarket charging handles work on these things? Not a real fan of the 'tactical' charging handle Ratech offers.

So I ran into a guy who was looking to offload his airsoft stuff, after taking a look at his kwa m93r and kjw kc-02 I made him a lowball offer... and he accepted... So I've stumbled on a KC-02 for dirt cheap, and as it turns out I LOVE THIS GUN.... Both mags I got with it were leaking, but they were extremely simple to fix. After reading all 32(?) pages of this thread I am now stoked to deck this thing out. So I've ordered a pile of crap and totally overspent on a gun I didn't even intend to buy in the first place. This will be my DMR/Sniper, my local field allows up to 450 fps so I will be aiming for 430-440 range. Even though it seems to shoot close to there already... Based on the advice of a few here I've ordered an RA tech hop up bucking, 380mm tb barrel, and a NPAS. I've also ordered a scope, bipod, a new butt stock, and 5 30rd mags. It's too bad summer is almost over and I may not have the parts or mags to play it until September sometime, which could mean it's a less effective gun depending on how quickly the weather goes back to cold.

I will of course post some pictures when I complete my build, but so far this gun seems right up my alley.

Anybody got a trick for speed loading these short mags? I thought about tying fishing line to the bottom of the spring so I could pull it down and more easily load it but I'm pretty sure that would require 3 hands...

Has anybody removed the front sling mount on this? Would like to kmow! Ty

Yep removed mine and the rails on the bottom and sides make the gun much more easy to hold...

How is it done? Its flappy and noisy... do I need to take it apart? This is my first GBB so im sweating doing so.

There are two screws you need to remove, and then its right there. The screws are: 1x at the back of the receiver, and 1x right in front of the magwell. Remove them, lift the barrel and then you can get to the nut that holds the sling swivel in place...

Yep, I did it last night... I just took it apart & it was rather quick. Thank you!

Does anyone know who or where I can order RA tech parts for the KC02... everywhere I have looked in country is sold out or not carried... I am seriously thinking of ordering from evike now plus some mags...

What are you looking for. I have a bunch of ratech steel parts I never got around to installing I was about to put up for sale. Pm me will discuss

Time to revive this thread!

Just bought a used stock KC02 and was planning on overhauling it.

After reading all 31 pages of this thread a few times, I decided to go with the following upgrades:
-RA-Tech 6.01mm Stainless Steel Tightbore – 380mm
-RA-Tech Hop-Up Rubber
-RA-Tech NPAS
-PRS Stock
-WA GBBR G27 Grip

What are your opinions on the above?

Does anybody know if ASD's PRS AEG Simplified stock will work on the KC02 and also if MP5 pouches will fit the long mags?

Finally, how have your rifles held up after a few years (if you didn't sell them)?

Thanks all.

That all sounds decent. I went the VSR chamber route and put and Orga wide bore in my gun with a Maple leaf bucking.

Time will tell I guess.

At any rate, the best mag pouches for the KC02 are M4 pouches (2 fit snug) double stack pistol mag pouches (snug fit) open top Pistol Tacos (apparently one of the best options).

I would think a standard MP5 mag pouch would be too long.

I would stay far away from RA-Tech, but that's just me :P.

@naminator: I've also heard that 40mm grenade pouches work too, but all of those would feel pretty bulky because I'm planning on using that in a drop leg setup, so I was hoping that MP5/MP7/UMP pouches would work. If the pouches are too long but the mags fit in, then I'd just rig something on the bottom of the pouch to stop the mags from slipping too deep.

Do you know if a AEG PRS stock could be mounted to a KC02?

@BioRage: What's wrong with RA-Tech? Most of the guys on the forums (not just ASC, but the others as well) say that the RA-Tech rubber and barrel are great on the KC02.

I would choose Falcon inner over the RA-Tech inner, but that's me.

I stay away from RA-Tech, it gave me issues on my LM4 back in the day, and I've seen them in person mess up with their WE line (SCAR/M4), and their NPAS is quite in-consistent, however, I am not familiar with the KC-02 platform, just thought I'd mention it.

I run a Falcon inner with rubber now on my KJW P-09 and it's amazing.

Get a KJW M4 NPAS. Works just fine and is cheap.

As for the stock AEG stocks should fit fine. If it doesn't work there is an adapter you can get. However I would rather go out and purchase a real 10/22 stock and modify it to fit the KC02.

The RA-Tech stuff if fine in the KC02. However not great. Honestly I would purchase the VSR hop up chamber upgrade from Shapeways. Just google "KC02 VSR SHapeways" and it should come up. The chamber is like 50$ landed in Canada, then you can you VSR10 compatible barrels/buckings which opens a whole new world up.

If you plan on going HPA one day, do yourself a favor and get the Rocket valve at the same time (another 50$). You can also purchase a barrel clip pack that allows the usage of standard KC02 barrels in the VSR chamber. All from the same guy.

@BioRage: Oh, I see. I've heard that the Falcon barrels are great, but some people say the rubber sucks balls, so they pair the RA-Tech rubber with the Falcon barrel. But I'd rather use the RA-Tech barrel because the length sits flush with the outer barrel, while the Falcon barrel needs an extender (V2 KC02's don't have threaded tips for suppressors).

@naminator: Thanks for your suggestions.

The NPAS I was getting is the same (works for both KJW M4 and KC02).

I actually don't like how real 10/22 stocks look so... I'll see with the PRS. Only ask because the PRS needs me to remove the buffer tube screw and replace it with the PRS one so the stock attaches.

Are VSR10 barrels and buckings that much higher quality than the RA-Tech barrel and rubber? Would the groupings be a lot tighter at range?

No HPA for me thanks; I don't really want to lug an air tank around. :P

Does anybody have SMG mags (MP5/MP7/MP9/UMP) that they are willing to do a size comparison with a long KC02 mag and take a photo of?

Many thanks again.

I bought the VSR and Orga system.
It sucked.
It was straight and true, but didnt have the range that the ra tech and FE bucking had. The vsr chamber/barrel combo maxed out at 50 yards as measure with a laser range finder, where my ratech/fe bucking were flying true at 75 yards.
Stay away from falcon for the kc02, it is very poor quality.
For the regular mags, i use an m4 pouch and it fits two mags perfectly. and securely. I found the grenade pouches were a little top heavy and fell forward too much when threaded.
I have never used more than three mags during a day of gaming, so one m4 pouch was always great. Now that i have a drum mag, i dont even have a pouch anymore.
Also, in regards to hpa. A 13 ci tank with a 380 mm 6.03 only requires 60 psi to get 418 fps, so a very tiny tank will give you about two solid days of gaming.

Problem is the FE bucking is obnoxiously hard to find. I want to test the widebore. If it doesn't perform how I want it to then I can always switch to a PDI or Prometheus or and Angel Custom or one of the dozen other barrels on the market that are VSR compatible.

HPA is a great option too. Greatly increases consistency.

scopeand laser had the fe bucking last time i checked.
We tested three vsr chambers with barrels against the ra tech barrel and the ra tech destroyed the vsr system. The developer swears i got bad copies, and is doing three more, testing that he likes them to what he has observed and then sending me out more to test, so i shall see, but as it stands now, the vsr and orga was not a great combo in the three guns we tested.

I was never really a fan of these, it seemed like it'd feel a little small and light in my hands. However, as of late, I find myself drawn to them more. Never realized how customizable they are, though, and that's a huge bonus.

What's going on with me, I even want a Glock lately, jeez...! :P

Join the facebook group deejay; THEN you'll realize just how customizable they are.

Stock, they take AEG stocks and GBBR grips and any accessory you want to throw on it.

Aftermarket, some not bad support with parts like barrels, buckings, steel internals.

But the community support is INSANE; Kevin Forney makes must-have pistons for it, Aaron Logue makes CNC'd aluminum bolts that help efficiency and durability, someone makes custom hopup chambers for VSR buckings and barrels, there are lots of custom charging handles, and... coming soon, 3D printed bullpup bodies! Or... you can go and get a real-steel 10/22 stock and with only slight modification, fit it onto the Kaycee!

So... nothing wrong with you mate; just the Kaycee calling out to you like it did to a lot of us. :)

Received my KC-02 ASG version, comes with flip sights, and threaded barrel, and of course a long mag.

Great rifle for my body size, compared to my other AEG's and GBBR's, this one is going to be my favourite.

Ordered some barrel spacers and looking at aftermarket charging handle. NPAS is next for CQB play :).

Welcome to the club Bigload!

Pop over on facebook and join the KC02 group; we got lots of parts, information, and support there. Just note, as yours is the ASG version, odds are good you'll have to do the hop screw mod. I still have to do it to mine... :/

But yeah! What are you planning on doing with it? DMR?

Just joined that group today, looking forward to having another source for questions and research! Thank you, Datawraith!

Data

No plans yet Going to get it ready for cqb play at siege for now.
I dropped the mag already and I am looking to reinforce the baseplates a little bit.

Haven't received the barrel stabilizers yet. But I do want to swap out the charging handle. The prices are not attractive due to the poor exchange rates, if I want to buy Eatons printed ones.

Hehehehe, I love running my KC at Siege. Use it like a shotgun in close quarters for rush games or sit back and plink at people from the upper levels; it's awesome.

Your barrel spacers might not really matter unless you get an aftermarket barrel. Reason being, the stock KC has a tiny pistol length barrel with an attached extender. For barrel spacers to matter (and you should do one of these upgrades), you have 2 routes; you can get a RA-Tech barrel for the KC and pair it with a FE 70 bucking (both are hard to find, but I think ehobby restocked recently on the bucking according to the group, although it may have already sold out knowing the members there :P), or you can get the VSR hopup chamber and use any VSR hopup and barrel (I don't know how good this is, but a lot of members swear by it...).

When you say baseplate, I'm assuming you're using CO2. Ehhhhh, if so, CO2 isn't really gonna work with the KC at Siege because it'll shoot too hot. My setup isn't the best for examples cause I've swapped out most of the guts, but I was shooting too hot with green gas and the NPAS turned off. Ofc, once I tuned my NPAS in, it shot alright. I don't know if the NPAS (I'm assuming you have one) can handle the pressure of CO2 and reduce the FPS enough for Siege though.

Yeah, the exchange rate sucks... But, why do you want to swap out the charging handle? Aesthetics?

I would avoid the RA-Tech NPAS and get a Cradle Velocity reducer instead. The NPAS will creep/close, increasing the FPS. Even with teflon tape on the threads, or locktite, it will still work its way closed.

I have a cradle in my KC and it has zero chance of adjusting itself mid game. It is a minor annoyance to change the FPS, but it's worth it. It also seems to be more consistent than the NPAS from my experience.

Have you guys tried removing the thread barrel adapter? I need to get inside the outer barrel as the sleeve / connector is in the way.

Are you talking about the barrel extender for the stock barrel? Remove the barrel+hopup assembly from the receiver and just take a long screwdriver, poke it in through the front and pop the extender out the back. Takes a bit of force, but still quite easy to do.

Thanks for the info.

I missed your replies Data,

I installed the spacer, I didn't know that my inner barrel was two pieces. That's so strange. I might plan to swap it out for an RA tech stock length inner later on. I still haven't order my Cradle yet, like Seags suggested. My NPAS on the M4 came lose as well and went to 450 fps from 370.

At the moment, I don't think I will need to modify anything as the gun performs pretty straight out of the box!

Mp5 Magpuls seems to fit the mags nicely and cheaply. So no need for custom printed 3D plates!

If you're planning on a Cradle, better get it fast; it's on sale at the moment due to a clearance for whatever reason (hopefully Cradle isn't going out of business...).

Ra-Tech barrels are nice; look into the 6.03 Maple Leaf barrel though. Easier to maintain than the 6.01 and just as good for accuracy and range. I'm actually fairly tempted to get a VSR bucking and barrel hopup unit for more options... Also gotta get a new charging handle; I just snapped mine today :(

I found the MP5 Magpuls made it a bit of a pain in the ass to refill the mags with gas/CO2. Low quality ones tear when you push the pull tab out of the way to re-gas the mags.

I was impatient and bought the NPAS from a local source :(. I didn't see your message until now!

Having said that, how much gap on the NPAS did you open and what FPS did you get?

I can't seem to find a video for NPAS installation, but found a few on rocket valve. I assumed it is the same?

The NPAS will go into the stock valve?

NPAS is better in my opinion; some people have trouble with the Cradles.

How much you open depends on the FPS you want, and you'll have to adjust according to your rifle. Mine will be different cause I'm running an aluminum bolt and aluminum piston. Just make sure to blue loctite it before installing (so it doesn't readjust itself).

There are some videos (if you're in the FB group, you should be able to find them in the FAQ; otherwise search youtube for TopHatRunner because I used his videos when I installed mine). The NPAS entirely replaces the black plastic bit inside the nozzle (dunno what it's called).

I replaced the plastic valve with the NPAS and had it barely open (3mm?). It was shooting at 390-400!

I think I might have installed it wrong? When I remove the mag, should you be able to see the NPAS via the opening? That, or I really need to loctite the NPAS :(

That's a good FPS, isn't? Mine shoots at 370-380.

I am trying to get 375 consistently to play at Siege.

edited:


I found this little pictorial from this link

http://forums.zeroin.co.uk/showthrea...nd-custom-NPAS

I guess I have the adjustment wrong? If the NPAS is fully closed, that's MAX fps? If I open the gap, it prevents GAS from going thru?

Yes

Any KC owners (in the GTA) need to do a Shapeways run? I need a charging handle for my KC, and the shipping blows (it doubles the price of my order). Let me know!

So does anyone know if the Cradle Velocity Reducers are still available?

No, Cradle is gone. Buy and use an NPAS and apply blue loctite, works pretty good. There's another community member (can't remember who) that made his own version of the Cradle, but I think it was super janky and not commercially applicable. I might ask on the FB page to see if someone who has a Cradle is willing to create a Shapeways model of it or something, maybe TopHatRunner.

doh! Thanks for the heads up. I guess blue Loctite it is.

Thought I would come here to get some more input, but I'm stil struggling with consistency and I can't for the life of me figure out why.

I'll list my specs and after that a rundown of all the DIY mods I've done myself to get better consistency. The upgrades I have are:

KF Piston
AEG chamber
Nine ball VSR bucking
PDI 6.10
NPAS
HPA tapped

And a few more but those aren't related to consistency.

My piston was loose, I.e. would move back and forth about a mm when installed. Fixed with an o-ring placed at the base of the piston. Teflon tape wrapped around the end of the bucking and barrel. Wanted to use floss but there is no room for it. Gasket maker on the piston to hold the spring pub in place. I've also checked that the magazine gasket and nozzle I let are properly aligned.

I'm getting on average around 355 FPS +/- 7 but every 1 in 4 shots goes as high as 370 or as low as 340. I had this same problem on a different barrel and bucking combo. I know I can get better efficiency because I've seen people shoot +/- 3 FPS on CO2 which is less consistent than HPA

Any ideas?

Hmm... You've got a good set of internals and it sounds like you covered pretty much all the bases...

NPAS would be my first guess. Pull that out, make sure there's no wobble and that it's functioning as it should.

Have you checked the integrity of all your parts? There might be a crack in your nozzle or some other air seal leak that expands when the conditions are just right.

Hope that helps; the FB group might be more helpful though. They've got tons more experience than me.

On a side note, how's the nineball bucking working out for you? I've been looking for a VSR Monster Diamond bucking but can't find one locally... I might have to settle for a W-Hold or something else...

I've found the nine ball to be much better than the PDI. I used the PDI when I ran propane and sometimes green gas and it swelled pretty quick. The bucking is much tighter in the barrel so it gives a better air seal. Haven't been able to do much long range testing but my groupings at 30ft were 1".

Once I get it to larger ranges I'll let you know how it goes

Such a great thread. Thanks guys!

On a side note- i can CONFIRM that the falcon rubber may be the WORST f*cking bucking known to the sport... Unless you want like 30ft max range. I was shooting from 170fps to 477fps per mag AND double feeding. Put the stock rubber back in and VIOLA.... 390-396 all day with the NPAS.

*edit* i will also add that i have put 20 or so mags worth through it.

Garbage

/end rant