Bone stock they shoot 270 FPS.
I wouldn't upgrade the spring to anything more than an M110 or the gearbox might crack. It is a V3 and slightly better with stress but still I wouldn't put too much stress on it.
Just run it bone stock and it'll be a reliable gun for years to come. When parts eventually start to break and wear out you should think about replacing with aftermarket stuff like Guarder or Lonex. But bone stock it's actually a decent gun.
ಠ_ಠLess QQ more Pew Pew
READY TO >> RACE