.223 / 5.56 thread protector will protect your threads if you plan on going without a muzzle brake/device on your rifle.
Features:
Fits 1/2-28 threads .936 . For .223 Rifles
Mil-spec phosphate coating
knurled for quick, tight and tooless use
CNC Machined High Quality Steel
Heat Treated
Solid Machined Construction
Black Oxide Finish
1/2"x28 Pitch Threads