The VG6 GAMMA 556 is a top-performing muzzle brake for reducing recoil. As a muzzle brake and compensator hybrid, the VG6 Gamma virtually eliminates recoil and muzzle movement during firing, maximizing performance. Quicker follow up shots, accuracy, and overall performance are just a few examples of the improvements made by this muzzle device. It is the perfect addition to almost any build, efficiently utilizing gas from 10.5-18.5" barrel lengths. This device is at the cutting edge of muzzle device performance and makes the perfect addition to your arsenal. Length 2.21"Diameter 0.86"Weight 0.18Material 17-4ph(R) Heat Treated Stainless SteelFinish BLACK NITRIDESurface Hardness 68RCCaliber 5.56 /.223/.224 ValkyrieThreads 1/2-28Crush Washer (included)The VG6 GAMMA is a high performance muzzle brake for eliminating recoil. It was designed using state of the art engineering techniques, utilizing CFD (Computational Fluid Dynamics) and CAE (Computer Aided Engineering). This product is 100% CNC machined for optimal performance.The VG6 GAMMA is a muzzle brake and compensator hybrid. It virtually eliminates recoil and minimizes muzzle movement. The unique combination of both braking and compensating features inspire shooter confidence and allows the shooter to make very fast follow up shots.The VG6 GAMMA has been tuned for versatility as well.Specifications for VG6 Precision VG6 Gamma Muzzle Device:Fabric/Material:17-4ph Heat Treated Stainless SteelLength:1.72 inWeight:2.1 ozIncluded Accessories:Crush WasherFit:Universal