The JT Muzzlebrake is a dual purpose muzzle brake, designed for long range accuracy and Close Quarter Battle (CQB). Available for any rifle threaded like the AR-15 1/2-28 and AR-10 5/8-24 Air-Blade design significantly reduces recoil and muzzle climb Gases are forced away from the ground reducing muzzle blast signature Machined from solid stainless steel Comes with plastic installation tool to protect while installing Brakes are carefully ported to compensate torque and muzzle climb associated with left-handed and right-handed shooters, making follow up shots much quicker. This is the best all around choice for off-hand and bench shooting. We guarantee that the JT Brake will perform as advertised. If the effectiveness of the JT Brake is compromised due to excessive wear, we will replace it at no charge.