Yankee Hill Machine Co 1/2x28 Thread Protector .223/5.56 – .730 OD

This Yankee Hill Machine thread protector keeps your rifle's muzzle threads clean and protected when you're not running a muzzle device or suppressor. Engineered for .223/5.56 barrels with 1/2x28 threads, it provides a flush, low-profile cap that prevents thread damage from impact, debris, or corrosion during storage and transport.

The .730-inch outer diameter matches most standard-profile AR-15 barrels for a clean look. Steel construction with a black finish. Installs hand-tight with a wrench flat for secure fitment. Remove before firing any firearm.

• Type: Thread Protector
• Thread Pitch: 1/2x28
• Outer Diameter: .730"
• Material: Steel
• Finish: Black
• Compatible Firearms: .223/5.56 rifles with 1/2x28 threaded barrels