Yankee Hill Machine115841434
YHM NIELSEN PISTON .578X28$69.75
Availability: In Stock
A .45 pistol thread protector from Yankee Hill Machine is a simple but essential safeguard for your firearm when you're running your barrel without a suppressor, brake, or other muzzle device. These steel protectors preserve the integrity of your barrel's muzzle threads—the foundation for reliable mounting of aftermarket components. Whether you're switching between configurations, traveling, or just storing your pistol between range sessions, a quality thread protector keeps those threads clean, undamaged, and ready to accept accessories when you need them.
Yankee Hill Machine has built a reputation for no-nonsense, durable muzzle devices and accessories. This .45-caliber protector is machined steel in black finish, sized to fit .578x28 threads with a .650 OD (outer diameter). It's the kind of small, hardworking piece that separates serious shooters from those who learn expensive lessons about cross-threading or corrosion.
If you're building a modular .45 platform, own multiple muzzle devices, or simply want to protect your investment between uses, this thread protector belongs in your kit. It's not flashy, but it works—and that's the Bosque standard.
| Thread Size | .578x28 |
| Outer Diameter (OD) | .650 |
| Caliber Compatibility | .45 |
| Material | Steel |
| Finish | Black |
| Manufacturer | Yankee Hill Machine Co |
This protector is designed for .45 pistol barrels threaded to .578x28 specifications with a .650 OD. Verify your barrel's thread size before purchasing—incorrect sizing can result in poor fit or damage.
A thread protector simply covers and seals the muzzle threads to keep them clean and protected when no other device is installed. It serves no ballistic function. Muzzle devices like suppressors or brakes attach to the threads and affect shot signature, recoil, or sound. Use a protector when you're not running an accessory.
No. A thread protector is designed for storage and between-use protection only, not for firing. Remove it before shooting.
This is a protector, not a QD or modular mount. It threads directly onto .578x28 barrels. If you use quick-detach muzzle devices, you'll remove the protector when installing a muzzle device.
SKU: 115725860 • Width: 2in • Height: 0.5in • Depth: 3.5in • Weight: 0.06oz
Availability: In Stock
A .45 pistol thread protector from Yankee Hill Machine is a simple but essential safeguard for your firearm when you're running your barrel without a suppressor, brake, or other muzzle device. These steel protectors preserve the integrity of your barrel's muzzle threads—the foundation for reliable mounting of aftermarket components. Whether you're switching between configurations, traveling, or just storing your pistol between range sessions, a quality thread protector keeps those threads clean, undamaged, and ready to accept accessories when you need them.
Yankee Hill Machine has built a reputation for no-nonsense, durable muzzle devices and accessories. This .45-caliber protector is machined steel in black finish, sized to fit .578x28 threads with a .650 OD (outer diameter). It's the kind of small, hardworking piece that separates serious shooters from those who learn expensive lessons about cross-threading or corrosion.
If you're building a modular .45 platform, own multiple muzzle devices, or simply want to protect your investment between uses, this thread protector belongs in your kit. It's not flashy, but it works—and that's the Bosque standard.
| Thread Size | .578x28 |
| Outer Diameter (OD) | .650 |
| Caliber Compatibility | .45 |
| Material | Steel |
| Finish | Black |
| Manufacturer | Yankee Hill Machine Co |
This protector is designed for .45 pistol barrels threaded to .578x28 specifications with a .650 OD. Verify your barrel's thread size before purchasing—incorrect sizing can result in poor fit or damage.
A thread protector simply covers and seals the muzzle threads to keep them clean and protected when no other device is installed. It serves no ballistic function. Muzzle devices like suppressors or brakes attach to the threads and affect shot signature, recoil, or sound. Use a protector when you're not running an accessory.
No. A thread protector is designed for storage and between-use protection only, not for firing. Remove it before shooting.
This is a protector, not a QD or modular mount. It threads directly onto .578x28 barrels. If you use quick-detach muzzle devices, you'll remove the protector when installing a muzzle device.
SKU: 115725860 • Width: 2in • Height: 0.5in • Depth: 3.5in • Weight: 0.06oz