USP - Meet Your Match
 

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KSC USP .45 Match System 7 - TW Ver.
KSC USP .45 1st Generation - TW Ver.

http://www.dmt07.com/airsoft/MAR2010/1280_USPM-01.jpg
http://www.dmt07.com/airsoft/MAR2010/1280_USPM-02.jpghttp://www.dmt07.com/airsoft/MAR2010/1280_USPM-03.jpghttp://www.dmt07.com/airsoft/MAR2010/1280_USPM-04.jpghttp://www.dmt07.com/airsoft/MAR2010/1280_USPM-05.jpghttp://www.dmt07.com/airsoft/MAR2010/1280_USPM-06.jpghttp://www.dmt07.com/airsoft/MAR2010/1280_USPM-07.jpghttp://www.dmt07.com/airsoft/MAR2010/1280_USPM-08.jpghttp://www.dmt07.com/airsoft/MAR2010/1280_USPM-09.jpghttp://www.dmt07.com/airsoft/MAR2010/1280_USPM-10.jpghttp://www.dmt07.com/airsoft/MAR2010/1280_USPM-11.jpg

I don't know a lot about pistols... but why are the compensator vents aimed downward?

The "compensator" on a USP match is nothing more than a stylish 2 piece barrel weight that makes it look awesome. The weight probably does aid in reducing muzzle rise to some capacity but it's a pretty bolt on more than anything.

Apparently it's only a weight and not an actual compensator

Ah, ok thanks for the info. BTW those pistols do look awesome. Love the USP.

You should invest in the SD slide without the cheap white trade....you know you want to.....:D

Or I could invest $350.00 into an RA-Tech CNC steel slide and barrel set later this month :D

The only thing I have against those is you are going to have trouble finding matching rate recoil spring.....

mhmm same here .. such a sexy pistol.. even just too look at, let alone shoot...

Was thinking the same thing.. But the only thing bugging me is the font of "USP" looks a bit, well.. off

http://en.ratech.com.tw/img/rag/rag-ksc/rag_ksc004.jpg
http://en.ratech.com.tw/img/rag/rag-..._ksc004_d2.jpg

so you cant really use the stock sys7 recoil spring for it? what happens if you do use the stock one? just been watching those videos from ra-tech on youtube...it seems like the recoil is alot 'heavier'? but i think they were using the stock spring..

The steel slide is a lot heavier than the stock metal slide, or the SD aluminum slide. The blow-back will be a lot stronger with steel, but it'll be a lot slower to return to battery. Not that you can't just use it like that, for me it needs to have snappy return. The upgraded spring in the market are meant to use with aluminum slide....steel needs something stronger...

So does it actually do a somewhat effective job of this? I was thinking of picking up a Sys 7 USP Match myself - only for the longer barrel and muzzle weight. If one or both don't do all that much for the performance of the USP, it probably isn't worth it for me to buy one for tuning.

In the airsoft world I'm going to say not really. There isn't much recoil at all in the first place with an airsoft USP, and secondly the muzzle weight itself is only made out of heavyweight plastic and not metal like the real one so it's not providing you with a significant downward force to begin with. But the longer barrel, weighted mag well, unique look, and ambidextrous controls is more than enough of a reason to get one.

Hmm, okay. Plastic is sort of defeating any functional reasons for including a muzzle weight... oh well. Yup, fair enough - it certainly does look cool.

yeah i noticed it was slower than stock...but does it wear down the gun at all if you use steel slide with stock springs?

Sorry to dig up the thread

150% Shooter Design Recoil Spring Set will work. It will be snappy like before....But problem again. When I used the 150% recoil spring on KSC Metal slide, 25rnd bb dump slide wouldnt lockback, reason? simply too strong. Shooter Design Slide w/ 150% works, however, it locks back less often. Why? simply because the gas pressure. You would probably need to use red gas or something stronger like R448a to make use of the steel slide and 150% recoil spring..

In short:
Heavier Slide = Decrease slide return, Increase Gas consumption
Stiffer Spring = Fast Slide return, decrease slide lock (tension will push slide to return prematurely when gas isn't the same pressure as first shot)

Use both = Regular Slide return (atleast for SD slide), Dramatic gas consumption increase, same rate of slide return.

I'm still considering whether I should get the RA-Tech slide or not (it would be silver version of course)

Thats the same problem with just about any GBB(rifles too). So far my Guarder Steel TM Glock works ok(running on a 200% recoil spring that came with it, can shoot ~60+ round and locks back), but a glock slide simply doesn't weight that much, and its BBU volume and size is similar to that of a Hi-Capa. The USP slides are much bulkier...