Special Purpose Rifle (SPR) Mk12 mod1 Replica w/ Pro-Win Gearbox Install!
 

I've had this project rifle in the works for a while now and externally, it's been completed for a while. Only very recently have the internals been completed to make this gun... "leet" to match its real steel version.

The basis for this rifle, as was with my NSW DEVGRU CQB-R project, is to get it as close to an accurate replica of its real steel counterpart as if it were to come direct from factory or as issued to the operator. All accessories, add-ons and features are all to closely mimic as possible how the gun would be received in real steel form.




About the rifle platform (paraphrased from http://en.wikipedia.org/wiki/United_...urpose_Rifle):


United States Navy Mark 12 Mod 1 Special Purpose Rifle

http://www.pbase.com/illusive_airsof.../original.jpg]
mod1 as employed by NAVSPECWAR (Naval Special Warfare) operators

The United States Navy Mark 12 Mod 1 Special Purpose Rifle (SPR) is a rifle that has been in service with the United States special forces in Operation Enduring Freedom and Operation Iraqi Freedom. SPR initially stood for Special Purpose Receiver, but that nomenclature seems to have disappeared as the weapon became a stand alone weapon system, and not just an add on upper as part of proposed SOPMOD upgrades. SPR now means Special Purpose Rifle. It was eventually type classified by the Navy as the Mk 12, though the Army also uses this designation.


Background

This weapon system, used by Special Forces units of both the US Army and US Navy, is a heavily modified deviation from the familiar AR15/M16 line of infantry weapons, and thus is chambered for NATO standard 5.56 x 45 mm caliber ammunition. It serves a light sniper/designated marksman role. The SPR was originally proposed by Mark Westrom, currently president of Armalite, while at the Rock Island Arsenal. The SPR program was an outgrowth of the desire by both US Army and Navy special forces for a rifle with greater effective range than an M4 type Carbine but still shorter in length than a standard issue M16A2/A4. The SPR program appears to have grown out of both the SOPMOD Block II program, and the US Navy SEALs 'Recon Rifle' (a 16" flat-topped AR-15/M16 Carbine). The Naval Surface Warfare Center, Crane Division (often referred to as NSWC-Crane or just Crane) essentially expanded on the Recon Rifle, an idea that some SEALs maintain was a waste of energy and money.

The exact history of the Mk 12 is still something under debate, but its become apparent that there are between four and five prime iterations of the weapon, culminating in the last Mk 12 Mod 1 version. One progression has four models: SPR Proto 1, SPR Proto 2, Mk 12 Mod 0 and Mk 12 Mod 1. The other progression is: SPR, SPR/A, SPR/B, Mk 12 Mod 0, and Mk 12 Mod 1 (all as separate iterations). The specifications entered will follow the second progression.

There is also increasing agreement among observers and small-arms historians that different US military service branches deploy different iterations of the SPR. Available evidence, including both US DOD photographs and privately-obtained photographs (like the ones shown below), consistently show US Army SOF units using the Mk 12 Mod 0 iteration of the SPR, while NAVSPECWAR operators have been identified as using the Mk 12 Mod 1 version.

Though the Mark 12 Mod 0 Special Purpose Rifle had enjoyed relative obscurity for most of its short life, recently it has been featured prominently both in media photos of the Iraq conflict and in interactive video games such as the government-created title America's Army: Special Forces, the console title Tom Clancy's Ghost Recon 2, and the freeware first-person shooter True Combat: Elite. In a civilian capacity, copies (commonly called "SPR clones") of the SPR rifle have also become quite popular among shooters and collectors in the US, with several reputable builders of AR15-style rifles making civilian-legal copies of this very accurate rifle.


Specifications
* Upper Receiver: The upper receiver blocks themselves were initially supplied by Colt, with some of those being from Diemaco as well (Colt has been outsourcing parts of its production to the Canadian firm for a while now—Colt purchased Diemaco in February 2005, but continues to supply firearms under both names). There is a debate about whether the upper blocks for the Mk 12 rifles, though, came solely from Armalite, or were a mix of receivers from Armalite and Colt/Diemaco. All of these upper receivers were flat top, but have been seen both with the old style tear drop forward assist and the new round style. There is, however, no obvious consistency in this regard.
This airsoft replica uses a Colt branded receiver, manufactured by G&P as their "SPR Metal Receiver Kit" and comes with the ergonomic SPR pistol grip as well. Some features on this receiver make it a closer replica to real steel than any other metal receiver for standard AEGs. This receiver kit also includes the Knight's Armament big cocking handle lever and the forward assist knob is of the round variety.

* Lower Receiver: When the SPR program was still in the phase where it was just a receiver, Crane assembled all of its prototypes using either M16A1 or M4A1 lowers. It is unknown whether this pattern continued as the program progressed. There is also some issue about whether, when the Navy type-classified the weapon, Precision Reflex Incorporated (PRI) began assembling the rifles themselves. While a number of options were tried in the end, a Knight's Armament Company (KAC) 2-stage trigger was finally decided upon as the standard fit.

* Handguards: In all cases a free floating forearm is utilized. This handguard does not ever touch the barrel, increasing the accuracy of the weapon by removing increased vibration exerted on the barrel by the rest of the gun. The first SPRs use a PRI Gen I or Gen II carbon-fiber free-float tubes. The SPR/A, SPR/B, and Mk 12 Mod 1 all use the Knights Armament Company (KAC) M4 Match Free-Floating RAS (Rail Adapter System). The Mk 12 Mod 0 uses PRI Gen III free-float tubes. The Gen I and Gen II Freefloat Forearms are combined with the Atlantic Research Marketing Systems (ARMS) #38 SPR MOD Sleeve, while the Gen III Freefloat Forearm, due its it larger barrel nut, only works with the ARMS #38 SPR PEQ-2-3.
This airsoft replica uses a G&P free floating rail forearm, closely replicating the Knight's Armament design. Along the shooter's right side of the forearm, it bears the markings: M-4 SNIPER R.A.S. - PN: 99167. Along the shooter's left side of the forearm, it bears the markings: ARMAMENT CO. VERO BEACH , FL. (561) 562-5697

* Barrel: A 18 in (457 mm) threaded-muzzle match-grade free floating stainless steel heavy barrel with a 1:7 in (178 mm) rifle twist ratio. The barrels have a special contour to maximize accuracy and minimize weight; they are manufactured by Douglas Barrels. An OPS Inc. muzzle brake and collar (to align the OPS Inc. 12th Model Suppressor) is installed with the barrel. These barrels were designed to take advantage of the new Mk 262 cartridge, which uses a 77 grain (5 g) bullet, that is now being fielded.
This airsoft replica uses a GB-Tech free floating outer barrel, closely replicating the Knight's Armament design. The muzzle brake featured on it is a replica of the OPS Inc. muzzle brake.

* Buttstock: SPRs in action have been seen with M16A1 buttstocks, M16A2 buttstocks, retractable M4 buttstocks, and the Crane Enhanced retractable buttstock. It is readily compatible with any type of stock system developed for the AR-15 weapon system.
This airsoft replica uses a 3-position G&P replica of the NSW Crane stock and houses a 9.6v 2200mAh battery pack.

* Sights: The original SPR used an early PRI flip-up front sight with an elevation dial, which has since been discontinued. The Mk 12 Mod 0 uses the current PRI flip-up front sight. The SPR/A, SPR/B, and Mk 12 Mod 1 use the KAC rail foreend flip-up front sight. The SPR and Mk 12 Mod 0 use the ARMS #40 flip up rear sight. The rest of the models use the KAC 600 meter flip up rear.
This airsoft replica uses the GB-Tech replicas of the KAC rail foreend flip-up front sight and the KAC 600m flip up rear sight.

* Optics: Due to the relative modularity of the system, optics (as well as almost everything else) can be mounted per the operator's wishes, however, this weapon system is most often seen with a 3.5–10×40 mm Leupold LR M3 (SPR/A), a 2.5–9×36 mm TS-30 (SPR/B), or a 3–9×36 mm TS-30 A2 (Mk 12 Mod 0/1) Mid Range/Tactical Illuminated Reticle Dayscope (civilian versions are known as the Leupold Mark 4 MR/T 3–9×36). Night vision devices can also be attached. These scopes usually come with flip open dust covers and a honeycomb anti-glare anti-reflection device (ARD).
This airsoft replica uses the G&P replica of the Leupold M3 and has a 3.5-10x optical zoom level magnification.

* Mounts: As mentioned before, a long accessory rail, called a SWAN Sleeve (ARMS SPR MOD or ARMS #38 SPR PEQ-2-3), manufactured by ARMS, is installed, running the length of the rifle. The SPR/A and SPR/B both used the KAC M4 Match FF RAS. Two ARMS #22 Throwlever 30 mm steel rings are used to mount the dayscope. The SPR/A, SPR/B, and Mk 12 Mod 1 use ARMS #22 high rings, while due to the increased height from the SWAN Sleeve, the SPR and Mk 12 Mod 1 use ARMS #22 medium rings. An under-the-handguard ARMS #32 Throwlever mount is used to mount the Harris bipod (the ARMS #42 Throwlever mount is used to mount the Versa-Pod); this features a quick release action.
This airsoft replica uses a GB-Tech replica of the KAC 30mm high mount rings.

* Bipod: Originally Versa-Pods, a cheaper Chinese-made copy of the relatively expensive Parker-Hale swivel bipod, were used, but were taken off the system after the initial SPR. Currently, a Harris swivel model bipod is typically used with the SPR, and is sometimes seen with a KMW Pod-Loc tension adjustment device. As mentioned above, the bipod is mounted via a ARMS #32 throwlever device attached to the bottom rail of the rifle's forearm. The ARMS mount is used on both Mod 0 and Mod 1.
This airsoft replica uses a Harris swivel bipod and attached via a King Arms replica of the ARMS #32 thorwlever mount.

* Suppressor: The suppressor threads directly onto the OPS Inc. muzzle brake and uses the collar to stay centered. It is an OPS Inc. 12th Model SPR Muzzle Brake Suppressor (MBS).
This airsoft replica uses a GB-Tech replica of the OPS Inc. 12th Model SPR Muzzle Brake Suppressor (MBS) and it does a decent job at hiding an extended inner barrel as well as muffling the sound signature of the shot.

* Ammunition: The SPR is not used to fire standard issue M855 ball or M856 tracer (and even less so M193 ball). Due to the limits in performance and poor accuracy of the 62 grain (4 g) M855 ball (standard NATO green-tip .223), the Mark 262 Open Tip Match (OTM) round was developed as a more accurate 5.56 × 45 mm round. The cartridges are made by Black Hills Ammunition. The first production batches were designated the Mk 262 Mod 0 and used a Sierra Bullets MatchKing 77 grain (5 g) Hollow Point Boat Tail (HPBT) bullet without a cannelure (crimping groove). Black Hills then approached Nosler, who made a similar 77gr OTM bullet, and Nosler agreed to supply cannelured bullets to Black Hills. This load was designated Mk 262 Mod 1. Recently, Sierra agreed to add a minimal crimp to their bullet, and this has since replaced the Nosler bullet in the current versions of Mk 262 Mod 1.
This airsoft replica takes a healthy dose of 6mm Guarder 0.28g BBs.

http://www.pbase.com/illusive_airsof.../original.jpg]




The internals used are:
- PGC (Pro-Win) 7mm custom gearbox, featuring a spring release lever, split gearbox design, CNC construction, quick spring swap feature. and a one piece hop up/gearbox/cylinderhead design for best possible seal.
- PGC M130 spring (allows the gun to hit a consistent 400fps)
- PGC tappet plate
- Eagle Force Hummer 1100L motor
- Prometheus Motor Gold Pin
- Prometheus low resistance silicone wiring running uninterrupted to the stock
- Prometheus double torque gear set
- Prometheus anti-reversal latch
- Prometheus 7mm ball bearing bushings
- Prometheus HARD piston (custom fit)
- Prometheus v2 spring guide
- Prometheus 7mm enhanced selector plate
- Prometheus 6.03mm 590mm tightbore inner barrel
- Big-Out H-Hop Hop Up Bucking (black)
- Systema bore up cylinder kit
- King Arms Gear Sector Clip

Very nice Brian. I been looking at doing somthing similiar after I get my M-14 EBR project outta the way.

jesus dude. everything in there is top of the line. Next time you have it apart, get a pic of the split mechbox. thats hawt

video of it firing too, like to see the eagle force in action.

I am a big fan of the SPR and that looks great. Must be solid as a rock too

Rob

Very nice Brian. Like Droc mention, would like to hear more about the Pro-Win split mechbox design. Any thoughts on the durability of making a 450fps out of it?

I think you could easily get that gearbox up to 700fps with a hard recoil kit and not worry about damage!

hmm... hard recoil kit...

really niice

Looks great! I was thinking of trying the PGC myself. How much effort and expertise did you employ to get it tight with your build? Are PGC tweaking their mech box as they go, or do they all have that 'anodized not accounted for in measurement' thing?

How does that build sound?

Once again, nice job.

I seriously do NOT recommend the PGC gearbox for anybody who fears lots of modifications.

Generally, MOST of the modifications had to be done to the metal receiver. My job would have been made SO MUCH EASIER if I had a mill... but I don't. I ended up using my trusty Dremel tool and a Tungsten Carbide cutting bit.

Depending on the metal receiver you use, you may have to do a lot of mods, or very little. The PGC gearbox comes with a media CD that contains pictures of what needs to be modded for various receiver manufacturers. Included are Hurricane, G&P v1, G&P v2, and Guarder.

Handiest tools for the install (if you don't have a mill):
1. Dremel
2. Calipers
3. Files

The piston that comes with the kit is crap and I killed it in less than 200 shots while just testing at home. Cracked in a couple of places. Piece of garbage. The sizing tolerances of the gearbox are also a bit off, so not every piston will drop right in without modifications. I ended up modifying a Prometheus Hard piston to get it to fit.

Don't listen to earlier reports of PGC not accounting anodizing thickness in to their measurements. They did. When you deal with products that have extremely tight tolerances, expect the parts to be tight! (tight is good... mmm...) If pieces go together very easily, then that means tolerances are loose. This is why AKs always work and Armalites jam easily.

In this case, tight tolerances are good as it's noticed when fitting all the pieces of the shell together. You wouldn't want that shell to be flexible when all assembled, would you?

Overall, the gearbox is very very solid. I'm liking it very much.

Thx for that. Was the motor a special choice, or personal preference? How does it sound and perform vs the EG-1000?

Admittedly, my project my never get off the ground. As you may have seen, my 'primary' is an M-4 MRP using the 'Bestgun' kit. It has its own proprietary hop-up. I haven't yet bothered to determine if the PGC could actually work with my gun.

I bought the motor just to play around with it and see if it really made a difference... on a gun that can already handle a large battery pack fine, it made no noticeable difference, although I'm sure it helped reduce current draw. On a gun using a mini pack, the difference is more noticeable, but both ROF as well as torque went up compared to an EG1000. It sounds the same to me. If anything, slightly louder, since its ball bearings translate sound vibration moreso than the bushings of the EG-1000.

I don't see why the PGC wouldn't fit your MRP. I'm sure you can get it to fit, you'll just have to make some further modifications to your receiver, such as clearing out the hop up/feeding area.

Break out the dremel!!!

How much did this cost you?!

Not sure he wants to remember that ! LOL

Very nice piece Illusion ! Always great to see your master creation ! Good work !

Almost all of the parts can be found on Wargamer's site. You should be able to get a general idea from those numbers.

Good god man that is spectacular! A very big “Tip of the Hat”.
When can we see this baby in action Brian?

It's already seen field action once for a milsim and it got 4 kills that day. And I totally demolished a sign. Even knocked it right off the post it was hanging from.

Hopefully I'll get a chance to bring it out more often before it starts snowing.

Brian!! we have the same. well almost :-D
http://img513.imageshack.us/img513/1759/dsc07089td6.jpg

I was just working on this gun, figuring out some annoying issues with the Pro-Win gearbox and remembered this thread, so I thought I'd revisit it to update on the new Pro-Win 7mm issues I've encountered:

The cylinder head is not supported properly in the gearbox. It actually sits too far forward. Because of this, the air seal is inconsistent, and even worse, the piston sits too far forward in battery. Because it sits too far forward, the sector gear does not engage it properly. This was why the PGC polycarbonate piston that came with the gearbox snapped so fast where it did. It took about 3000 rounds before I noticed a tiny big of strange wear on the custom Prometheus piston I installed before I finally figured out what the real issue was.
The reason why I started to look at this specific problem, was because of the primary issue with the cylinder head sitting too forward: Because it sits forward, it doesn't allow the tappet plate to pull back as far as it should. Because of that, the air seal nozzle is also not cleared enough out of the chamber to allow proper feeding! By around the 3000 round mark, my gun was so inconsistent with feeding (or completely HALTED feeding), that it forced me to look inside.

The solution I've come up with is to place a shim at the front of the cylinder head, that pushes it back in to the cylinder far enough to allow proper engagement distances. I'm currently using just a piece of cardboard to test whether it works, and yes - this has fixed the issue. I now need to come up with a different shimming material that's a bit more consistent. The thickness needs to be approximately 2.5mm thick and you need to find a way to fix it to the gearbox to prevent movement in to the path of the tappet plate.

Another issue that's developed that I haven't explored yet, is when in semi-auto mode, if I pull the trigger up to 7/8ths of the trigger pull length, I get full auto. The firing will only release when I either a) let go of the trigger b) pull the trigger completely. So the only way to ensure just ONE shot being let go, is to pull the trigger quickly. I'll be looking in to this issue shortly.



But back to the SPR:
I assessed the value of all the parts that I put in to this piece... and... well... let's just say I shed a little tear when I rang up the final number.

Well over $2000.

That doesn't even include the optics, bipod, batteries or BBs. *cries*

Curious Brian, does the Bore up kits work properly under 420ish fps

So....basically the Pro-Win gearbox is not necessarily the best gearbox there is?

I'm saying that because I'd love to get that one gearbox where you rarely worry about it no matter the cost.

I think the new 8mm Pro-Win addressed these issue and is a more 1337 ninja black/gray

its art man
 

My,

what nice work Brian. Its a joy to see your work.

miigwetch

deep

Yeah, it does. I tested between the bore-up kit and a regular kit and saw no difference in velocity, consistency or rate of fire. But at the time, I was testing with a Systema M120S. I think that since that spring is the minimum spring recommended to start using a bore-up kit, and 590mm is also the longest inner barrel you can use with a full normal bore cylinder, the performance of the two setups overlapped at that point.

I never said that Pro-Win isn't the best there is. In fact, I think it's the best at what it does. It comes down to what qualities you consider to be "the best." If you're looking for a gearbox that you can easily install, then no, Pro-Win is not the best. It's probably the worst in that regards. But if that factor is something you hold high, then just get a Systema drop-in gearbox. Don't even have to open it up and worry about shimming.
But that wasn't the point of this project. The point was to get the BEST full-featured performance out of this gun platform.

I still think the Pro-Win detachable gearbox is the best gearbox you can get for a standard Marui (clone) AEG because of all the added features it provides on top of the added durability.

Does it have issues? Yes, it does. Installation is difficult and skill is required.
The gearbox has always been marketed with a very clear warning:
"INSTALLATION TO BE DONE BY PROFESSIONAL ONLY."

I concur with that statement - if you're adverse to performing hard modifications, STAY AWAY from this gearbox. If the idea of grinding up your brand new metal receiver scares you, STAY AWAY. This is what I would consider to be an advanced installation.

But once this gearbox is installed properly from the beginning, it will provide for you an extremely solid and well performing platform.

I have 2 of the 8mm versions that have been sitting on my work bench for some time in one stage of completion or another, and I will agree with Illusion that these things are a hugh pain in the ass, but once done properly they make you giggle! I do believe that the issue with the tappet plate has been addressed with the second release of it, but I would have to say that it is perhaps not perfect quite yet. I would also agree that the PGC Piston that they have with the Version 2 of it, is crap. I stripped the first 2 rack gears on it with just the M80 spring in there after about 100 shots.

Shimming is in my opinion one of the hardest things to do for it internally (reciever mods aside) as it is a very persice gear box. I just wish they included some more info on the CD that ships with it regarding, well, every aspect of the thing. The pictures they have for what needs to be done to the recievers leaves a little something to be desired. And not including any info on Guarder recievers is annoying.

And as for the Version 2 of it being leet Ninja black... It is not that nice. To be honest, I would much rather it be some funky color like the nice neal one, or some of the prototype colors they went through. not this bland deep gray that it is. I would have really loved a deep red.

But I will say one thing. 8mm Bearings just keep going. Your gears seem to spin forever on these things!

Now if only I can get enough cash to put both of them togeather, then I will be happy.

got a prowin 8mm box in my VFC HK416
ILLusion is right about it being a pain to install (was up till 5am).
now that i have it all set up and running smooth, it sure is one hell of a sweet gearbox.
there is still some tweaking i need to do but damn, can it ever spit out BBs.
400 round hicap emptied in about 10sec on 8.4v with the M80 spring.
the gears are really quiet, but the motor and antireverse latch make quite a racket.
im running a set of systema tourque-up helical gears.
next step, pinp it out with a crap load of usless accessories. :rolleyes:

to what extent would the modding be to a CA m15?

and it says by professionals, how pro do you need to be?
ive only been in it for half a year or so, but i know my way around a gearbox, and im pretty handy with tools, do you think i could to it?

the only place i can find the 8mm version is this place in china, do you know anywhere closer to the us?

thank you for the necro

what?

Ignore the necro call, its better you post in an this original thread than create a new one.

Well it appears you reside in the USA, there are many retailers that you can find online. However there isnt anything wrong with ordering from asia either. If you can stand the wait that is. Its not just about knowing your way around a mechbox when it comes to prowins. Their an a little more difficult to handle than most and in most instances from what I understand you will have to modify your reciever to install the mechbox. If you are knowledge in the use of tools and are prepared to do so I would say best of luck and good on you. If you are not comfturble with this then I would recommend staying away from this project as it could get costly aquiring a new reciever everytime you screw up.

Should be about the same amount of modding on a CA gun as it is on any other receiver.

As for how pro you need to be... well, you need to be able to figure out all kinds of trouble shooting issues. Ask yourself:

- Can I use a mill?
- Do I even have access to a mill?
- If not, do I have the rotary tools available to perform the kinds of modifications an end mill can do?
- Can I figure out feeding issues?
- Can I figure out piston alignment issues?

If you answered yes to most of those questions, then you can do it. Knowing your way around a gearbox simply isn't enough to install the Pro-Win gearbox.

Pro Win 2008
 

Hi I´ve just get my own Pro Win Gearset for my VFC 416, and... It`s realy a pain in the ass, but as anybody said by 8 am I started giggling as Professor Frankstein after giving birth their creation!!

Then, the HORROR, MagazineS does NOT feed well the gear, so we had to re-open it again, but It doesnt seem to be any problem but something keep going wrong...

Could anybody do some pictures to the fixing you did to your problem with the BBs feeding?? Please I dont have very clear about the explanation of the piston head.

Thanks

let me take a wild guess and ask.. are you using the hop-up sleeve that came with the Pro-Win?.. if you are, you just found your problem.

I just got my 8mm Prowin working after about of month of tinkering , in and out of the gun. You may not be feeding right if your using the supplied hop up as previously stated but once you get it working it will be all worth it.

Don't use the white hop up rubber it comes with. It's too stiff and doesn't flex enough to allow BBs to pass through the chamber. And if BBs do manage to pass through, the velocity will be low.

that is beautiful!

So i made the plunge, i have my 8mm prowin coming right now, should be here in a few days, i am so excited

After a couple of month finally I got my Pro Win running.

In two words: AIM MAIZING!!!!

The only proble are that pistons take like 48 hours to break (Systema Nice quality but non 100% metal, because I was afraid of what can the metal one do to the whole gearbox).

Now I am using Madbull is already touched and marked, I thing I will have to change it in a couple of matches more.

VFC with 2007 ProWin 8mm gear box
Systema Speed Gearset (non helical)
Sysema 1 Joule spring (349fps)
Mp5 plastic Nozzle
Guarder Silicone Hop up sleeve
Guarder Infinite Torque up Motor
10.8V Battery
Home made Mosfet
Systema Switch
O2Free Wired

Average Overall (1-100): 80% (for the apettice of piston that it has, otherwise It will arrive to 95%) leaving the rest up to 100% to the PTWs maybe.

Hi, i will buy this gearbox ( PROWIN 8 mm). Send me PM, when you can sell it.Thx

Holy Necro Batman!

I still love looking at this build though. Great work ILLusion, as always.

actually I was kinda wondering why you did make it shoot 400fps? Semi-auto dmr in BC are generally 450fps, and clearly with what you say you think it can handle it.
Now I know what every one says about high fps but it would allow you to use a heavier bb.

Thanks for the info.

looks fantastic

At the time I built this, no hosts in Ontario allowed any AEG to shoot above 400fps, regardless of semi-auto DMR or not.

Thanks. I only wish that I'd taken more photos of this. It was one of my most favorite builds.

Hey, super nice job on the gun it looks amazing!
Im just wondering where you bought that supressor?

http://i.imgur.com/bEGqcaw.jpg

I would start with google
GB-Tech, VFC, G&P and King Arms all make a OPS INC. 12th model suppressors
Make sure the thread type matches your muzzle device

Oh man, I was 16 when Illusion first posted this...that is one major necro post.