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AR-15 Bull Barrel Thread Protector Nut for 1/2"x28 Muzzle Threading, Black SKU: BTPR03
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 width is for Bull type barrel thickness, not standard barrels. Outside textured for easy hand tightening.
