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Yankee Hill Machine
Overview
The YHM Thread Protector is designed for .308 Win caliber barrels and features a 5/8x24 thread pitch, making it a perfect fit for many muzzle devices. Constructed from stainless steel with a silver finish, this thread protector not only safeguards your barrel threads from damage when a muzzle device is not in use, but also adds a sleek look to your build. It's commonly found in precision rifle builds where preserving thread integrity is crucial.
YHM THREAD PROTECTOR 762 5/8-24 .920 OD SS
Builders on GunPartPicker first added the YHM THREAD PROTECTOR 762 5/8-24 .920 OD SS to a build in March 2026.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today all 3 retailers we track have it in stock. It dipped to $15.50 at BattleHawk Armory for a stretch in September 2026, under its usual $16.49, so sales do come around. Buying today, the lowest price is $15.50 at BattleHawk Armory, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
We ranked every muzzle device by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Muzzle Device Guide →Check it against the live catalog:
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