Tacfire's thread crown muzzle break is constructed of steel and made in the usa.This 223/5.56 model has 1/2"x28 tpi and a black oxide finish.
Finish: Black Oxide
Type: Muzzle Brake
Model: Thread Crown
Material: Steel
Thread Pattern: 1/2"-28 tpi
Finish: Black Oxide
Type: Muzzle Brake
Model: Thread Crown
Material: Steel
Thread Pattern: 1/2"-28 tpi