your problem is your trying to put a 1 peice hopup in a two peice hopup gun.
Your also going to need a new airnozzle too. because the kwa nozzle is a proprietary POS*, and doesnt fit any aeg other than a kwa or g36
if you want, or need somone to do the work for you. I can do some mods to ur Reciver so it will accept that hopup. and also install a new nozzle with an o-ring seal so it'll work.
should be no more than 35 bucks.
