• Compatibility : Designed to fit standard AR-15 barrels with 1/2"x28 threading.
  • Dimensions : Features an outer diameter of 0.712", making it ideal for standard barrels (not suitable for Bull barrels).
  • User-Friendly Design : The exterior is textured to ensure easy hand tightening, providing a secure and hassle-free insta

Full details and secure checkout: https://3crtactical.com/ar-15-black-carbon-steel-barrel-thread-protector-nut-for-1-2-x28-tpi/