Dead Air Silencers KeyMo Muzzle Brake .46 5/8-32. 458 while offering a faster rock-solid attachment method. For effective mounting on rifle barrels with little to no shoulder the KeyMo 46 features a muzzle-seating design that does not require the use of shims. The muzzle brake ports are designed to efficiently distribute gas and pressure inside your Dead Air silencer for superior performance and longer service life. When it comes to removal the suppressor can be easily removed without carbon-locking onto the mount. All this while still delivering the durability you ve come to expect from a Dead Air mount. The KeyMo 46 is compatible with all Dead Air KeyMo adapter-equipped silencers. Specifications for Dead Air Silencers KeyMo 46 Muzzle Brake: Manufacturer: Dead Air Silencers Color: Black Projectile Caliber: .45 Caliber Finish: Matte Fabric/Material: 4140 heat treated steel Length: 2.82 in Condition: New Package Content: Dead Air Silencers KeyMo 46 Muzzle Brake Dead Air Silencers DA162: KeyMo Muzzle Brake .46 5/8-32