The YHM .22/5.56 Rifle Thread Protector, 1/2-28 (brand part no. YHM-3412-B) is a steel thread protector that prevents damage to your rifle barrel’s threads whenever a muzzle device is not installed. It is sized for slim .22 and 5.56 barrel contours, with a 0.640-inch outer diameter that keeps it from looking oversized on a lightweight profile barrel. The 1/2-28 thread pattern matches the standard used across most .22 LR and 5.56/.223 muzzle threads. Keeping a thread protector on an unused barrel is cheap insurance against dinged or cross-threaded muzzle threads, which can ruin a muzzle device’s fit down the road.

Key Specifications

• Sized for .22 LR and 5.56/.223 rifle barrels.
• Threaded to a 1/2-28 thread pattern.
• Has a 0.640-inch outer diameter to match slim barrel contours.
• Machined from steel for durability.
• Protects barrel threads from damage when no muzzle device is installed.

Frequently Asked Questions

What thread pattern does this protector fit? 1/2-28, standard across most .22 LR and 5.56/.223 barrels.

Why use a thread protector? It keeps the exposed barrel threads from getting dinged or cross-threaded when no muzzle device is installed.

Buy the YHM .22/5.56 Rifle Thread Protector, 1/2-28

Order the Yankee Hill Machine Thread Protector from our Lubbock, Texas gun shop and keep your barrel threads safe between muzzle devices. It is an ordinary accessory among our Class 3 parts and accessories, not itself an NFA item. Add it to your cart for fast, insured shipping direct to your door.