American Precision Arms Micro Bastard Gen 2 Self Timing Muzzle Brake .308 or Smaller 9/16x24 Nitrided. These Muzzle Brakes & Compensators by American Precision Arms are made from stainless steel and are highly rugged to handle the recoil of your firearm. The American Precision Arms Gen.2 Micro Bastard Self- Timing Brake is fully auto-biased and therefore needs no triggering mechanism to cycle. Simply rotate the nut until it locks into place. For hassle-free installation this American Precision Arms Gen.2 Self Timing Brake has an installation nut that is a separate piece that allows you to install the brake at home. There are no hideous crush washers or peel washers to deal with and the installation of this device takes only a few seconds with no hideous crush washers or peel washers to deal with. Experience top-notch performance and handling with the American Precision Arms Gen.2 Self Timing Brake. Specifications for American Precision Arms Gen 2 Micro Bastard Self Timing Muzzle Brake: Manufacturer: American Precision Arms Projectile Caliber: .308 Caliber Fabric/Material: Stainless Steel Gun Make: AR Platform Gun Model: AR-15 Model Generation: 2 Inner Diameter: 0.75 in Outer Diameter: 0.75 in Length: 1.86 in Weight: 1.8 oz Condition: New Package Contents: American Precision Arms Micro Bastard Self Timing Muzzle Brake What firearm models does the manufacturer say American Precision Arms Gen 2 Micro Bastard Self Timing Muzzle Brake is compatible with? The manufacturer suggests that American Precision Arms Gen 2 Micro Bastard Self Timing Muzzle Brake is compatible with AR-15American Precision Arms G2M9630N: Micro Bastard Gen 2 Self Timing Muzzle Brake .308 or Smaller 9/16x24 Nitrided