
The SI Barrel Thread Protector is a high quality aluminum thread protector for your 1/2x28 threaded 9mm barrel. Protect your threads while you wait for your muzzle device or add a little customization to your barrel. Available in Black, Red, and FDE anodized aluminum. Features: - Machined from billet 6061-T6 Al - Can be used with live fire 9mm - Faceted design for ease of installation. Package Includes: 1 x Barrel Cover Thread Protector 1 x O Ring