All barrels feature an 11 degree crown. The .22 Win Mag version has a patented gas system and block under the barrel that taps a small amount of gas through a orifice hole in the barrel. This simple effective system allows the .22 Win Mag to function with all bullet weights.
Unique Gas-Assisted Blowback Operation
.22 Win Mag - Graphite or Stainless Steel Barrels
This rifle is designed to shoot 40 grain and 50 grain ammo ONLY. Firing 30 grain ammo will void the warranty.