Blackout Muzzle Break 556

• 5.56mm-1/2x28 Threads
• Rocksett and Shim Kit Included

The AAC BlackOut Muzzle Brake 51T 7.62MM. These highly effective muzzle brakes are compatible with AAC 51T sound suppressors. All AAC Blackout muzzle brakes are machined from high strength aerospace steel alloy and coated in a hard, durable, corrosion resistant SCARmor finish.