Presma AR-15 Barrel Thread Protector Nut for 5/8x32tpi Muzzle Threading Black Carbon Steel

Presma AR-15 Barrel Thread Protector Nut for 5/8x32tpi Muzzle Threading Black Carbon Steel. Outside textured for easy hand tightening. Specifications for Presma AR Barrel Thread Protector Nut: Manufacturer: Presma Fabric/Material: Stainless Steel Quantity: 1 Package Contents: Presma AR Barrel Thread Protector Nut Which weapon models is Presma AR Barrel Thread Protector Nut compatible with? Presma AR Barrel Thread Protector Nut is compatible with AR-15 AR-10Presma BTPR04: AR-15 Barrel Thread Protector Nut for 5/8x32tpi Muzzle Threading Black Carbon Steel