Umarex T.A.C. Airsoft Pistol to Carbine Conversion Kit

"I'm am here to answer the question i had for so long, but couldn't find answers too
will this kit fit the kwa usp?
the answer? yeah kinda, but it's definitely not supposed to lmao
you're gonna have to cut a lot of material off of the back panel labeled as "p8", to make room for the slide to blow back
then, you won't be able to fully lock the back piece forward, so i just went ahead and wrapped it in tape to keep the back of the gun from moving, HOWEVER keep in mind, it's actually pretty sturdy just being locked into the front piece alone, it'll just be able to move up and down
lastly, once you've jimmy rigged this thing into the kit, you're gonna have no way to rack back the slide, however, on your first round, you can just use the double action trigger to chamber the first round.
from there, the slide locks back like normal and you can just use the slide release and so on.
i still rate this 5 stars because it's made well and i'm not rlly using it like intended, so i can't fault it for any issues.

"Exactly what I was looking for and exactly what I expected. It fits snug with my umarex usp non blowback. I have a cybergun m&p 40 and it fit snug at the rail, but it was loose where the back of the pistol meets the adapter. After applying 3 or 4 pieces of nice and soft electrical tape to the adapter, the cybergun m&p 40 fit just as snug as the umarex usp. I assume that if you have a licensed version of the listed compatible guns, a little electrical tape might solve your problem as well. The flash suppressor is also threaded so you can put a silencer on it, but it would most likely have to be a custom one since according to the umarex USA website it has 1/2" NPT threading. It feels very good and makes your pistol look much more awesome.

"I just got this for my Umarex Usp pistol so i could use it on more fields. It preforms flawlessly and I am truly in love with the platform. I used my pistol daily for training and am now loving it even more.