The Lancer Viper Brake is a tuneable muzzle brake and compensator designed for precision shooters. Engineered with a blast chamber and four tuneable jets, the Viper muzzle brake effectively reduces barrel movement and felt recoil, making for faster follow on shots and a more accurate shooting experience. Available in stainless steel or black nitride finish for .308 and 6.5 chambered rifles utilizing a 5/8-24 thread pitch Angled blast baffles reduce recoil and stabilize the rifle Four jet locations on the top of the brake redirect gas pressure from the blast chamber creating a downward force on the muzzle Different size jets are supplied so the operator can tune the desired amount downward compensation Includes locking jam nut for mounting and six (6) configurable tuning jets Dimensions: Length - 3.75 Width - 1.87 (at the widest point) Height - 1.05