Product Description
AR-15 Barrel Thread Protector Nut for 1/2"x28tpi Muzzle Threading, Black Carbon Steel.
Protects your Barrels fore end threading when you have to remove your AR-15's Muzzle Brake.
Fits Standard AR-15 Barrel threading 1/2"x28. Outer Diam: 0.712"
Outer width is for standard barrels, not Bull barrels. Outside textured for easy hand tightening.
