VG6 Precision Gamma 556 SL

VG6 Gamma 556 SL Includes pre-drilled hole for pinning to a 14.5" barrel for an overall length of 16"Length 2.21"Diameter 0.745"Weight 0.16Material 17-4phA(R) Heat Treated Stainless SteelFinish BLACKNITRIDESurface Hardness 68RCCaliber 5.56 /.223/.224 ValkyrieThreads 1/2-28Crush Washer (included)The GAMMA 556SL is the ideal muzzle brake for 14.5" rifle builds. Featuring an outside diameter of .745", the GAMMA 556SL can be pinned and welded to your barrel while still allowing full maintenance and removal of your gas block without having to remove the muzzle device.The GAMMA 556SL utilizes a new aggressive chamber design that improves gas flow and reduces felt recoil significantly. It also features deep channel cuts that greatly reduce the overall weight toward the front end of your build.Slim in design does not mean slim in performance. Users can still expect the same great performance they have grown to trust from VG6 Precision muzzle brakes. With the GAMMA 556SL, you have the optimal solution for a lightweight, legal (when pinned and welded) and flat shooting 14.5" Rifle Build.Includes pre-drilled hole for pinning to a 14.5" barrel for an overall length of 16.1".The CAGE Device is NOT compatible with the GAMMA 556SL