[Hectic]

they will just change the spring in the systema the whole cylender really, as for BA FPS 450 but not AV,d and unknown in the community prolly 400 like every body else at least for a lil bit then 450 then take a certification for higher, tho higher fps isnt really the point of a BA you have range even on lowwer fps like 350 to 400 and stealth.
id say try it out how it is for a while and see how you like it being a sniper isnt for everyone and 50 or 100 fps wont change it for u at all lol see how the gun works and then maybe get a new hop up and a tight bore thatll make more of a dif then fps and folks will be more likely to let u play as a sniper if its 400fps ish