Allen Engineering Military Brake with Collar 5.56mm

This 5.56 AE brake is designed to work with or without a suppressor. When fired without the suppressor, the muzzle brake effectively reduces recoil and muzzle climb. The muzzle brake as designed eliminates upward and downward blast while reducing recoil. 

The brake is constructed of stainless steel and has a 1/2 x 28 thread. The overall length of the brake is 2.125".