tes - jam anti-chop bolt , maddman rocket valve, psycho drop, polish internals, and matchstik
any, the three bores should fit almost any
its mac dev
Ummm... nothing really, this is a good barrel kit
Well you know you are gonna get a quality product because its mac dev. this barrel system is great. Accuracy is pretty much on top of each other and it cleans through breaks ok, not the best, but good enough. Its worth the Benjamin you have to lay down for it, just as accurate as a dye boomstick, but for a cheaper price.
Thinking about getting a boomy ?.... consider a matchstik
not saying boomstick sucks or anything ... i think they are one of the best out there, but the mac dev matchstik is pretty damn close
buy now now now now