
Availability: In Stock
A Yankee Hill Machine steel barrel thread protector cap is a simple but essential safeguard for any rifle with a threaded muzzle. Whether you're swapping suppressors, flash hiders, or muzzle brakes, or storing your rifle between shooting sessions, your barrel's threads and crown are vulnerable to nicks, dings, and corrosion that can affect both accuracy and the fit of future muzzle devices. This steel protector threads on in seconds and keeps your threads clean and undamaged—saving you hundreds in rebarreling costs down the road.
Yankee Hill Machine engineered these caps with a knurled exterior grip that makes installation and removal fast and intuitive, even in cold weather or with dirty hands. No tools needed. The steel construction stands up to hard use and won't strip or deform under normal handling. It's the kind of small-dollar insurance that every serious shooter should keep in the range bag or truck.
Available in popular thread sizes to fit most standard rifle barrels, this protector is a no-brainer addition to your rifle maintenance kit. Leave it on between outings, between load development sessions, or whenever your muzzle device comes off.
This is a standard-barrel thread protector. Yankee Hill Machine offers these caps in popular thread sizes to match commonly available rifle barrels. Verify the thread pitch and diameter of your barrel before ordering to ensure proper fit.
Yes. The knurled exterior is designed for finger-tight installation and removal—no wrenches or adapters needed.
Absolutely. Keeping the cap on between shooting sessions prevents dirt, moisture, and accidental contact damage that could affect the fit of suppressors, flash hiders, or other muzzle devices.



SKU: 115670763 • Width: 2in • Height: 0.8in • Depth: 3.75in • Weight: 0.06oz





Availability: In Stock
A Yankee Hill Machine steel barrel thread protector cap is a simple but essential safeguard for any rifle with a threaded muzzle. Whether you're swapping suppressors, flash hiders, or muzzle brakes, or storing your rifle between shooting sessions, your barrel's threads and crown are vulnerable to nicks, dings, and corrosion that can affect both accuracy and the fit of future muzzle devices. This steel protector threads on in seconds and keeps your threads clean and undamaged—saving you hundreds in rebarreling costs down the road.
Yankee Hill Machine engineered these caps with a knurled exterior grip that makes installation and removal fast and intuitive, even in cold weather or with dirty hands. No tools needed. The steel construction stands up to hard use and won't strip or deform under normal handling. It's the kind of small-dollar insurance that every serious shooter should keep in the range bag or truck.
Available in popular thread sizes to fit most standard rifle barrels, this protector is a no-brainer addition to your rifle maintenance kit. Leave it on between outings, between load development sessions, or whenever your muzzle device comes off.
This is a standard-barrel thread protector. Yankee Hill Machine offers these caps in popular thread sizes to match commonly available rifle barrels. Verify the thread pitch and diameter of your barrel before ordering to ensure proper fit.
Yes. The knurled exterior is designed for finger-tight installation and removal—no wrenches or adapters needed.
Absolutely. Keeping the cap on between shooting sessions prevents dirt, moisture, and accidental contact damage that could affect the fit of suppressors, flash hiders, or other muzzle devices.
SKU: 115670763 • Width: 2in • Height: 0.8in • Depth: 3.75in • Weight: 0.06oz


