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Yankee Hill Machine
The Yankee Hill Machine SHORT SRX Brake in 5/8-32 is a quick-detach muzzle device engineered for shooters building a modern suppressor setup without the bulk. This compact brake is the mounting foundation of YHM's sRx (Suppressor Rx) system—a no-fuss, low-profile platform designed by people who understand that a tactical rifle should look as good as it shoots. If you're tired of shimming and timing muzzle devices or wrestling with thread buildup, the sRx brake's internal taper seal locks your suppressor on solid while keeping gas and debris off the threads entirely.
Built from 4140 steel with a black phosphate finish, the SHORT SRX brake measures just 1.6875 inches long and 0.75 inches in diameter—meaning it adds almost nothing to your gun's footprint or weight compared to traditional quick-detach suppressors. The large taper in front of the threads guarantees repeatable mounting every single time; no guessing, no wobble, no fidgeting at the range. Because there are no moving parts and the design requires no timing to your barrel, setup is genuinely simple. You can even leave it permanently installed if your mission calls for it.
The sRx brake threads directly onto your barrel (5/8-32 in this case) and mates with YHM's sRx Adapter—the matching quick-detach interface that lets you mount, remove, and remount your suppressor with confidence. This is the brake for hunters, precision shooters, and tactical operators who value reliability and aesthetics equally. The sRx system is built tough enough for hard use without the complexity of older mounting schemes.
| Brand | Yankee Hill Machine Co |
| Model | SHORT SRX Brake (YHM-4445-MB) |
| Thread Size | 5/8-32 |
| Length | 1.6875 inches |
| Diameter | 0.75 inches |
| Material | 4140 Steel |
| Finish | Black Phosphate |
| Mounting Type | sRx Quick-Detach (requires YHM sRx Adapter) |
Yes. The SHORT SRX Brake is the barrel-mounted component of the sRx system. To take advantage of the quick-detach suppressor mounting capability, you'll also need the YHM sRx Adapter (YHM-4400), which attaches to the brake's quick-detach interface. The brake itself threads directly onto your 5/8-32 barrel.
Yes. The sRx brake can be permanently attached to your barrel if you prefer not to use the quick-detach system. It will remain secure with no moving parts to worry about.
The sRx design features a large internal taper seal in front of the threads that locks your suppressor on tightly and seals gases away from the barrel threads—preventing carbon buildup and debris accumulation. There's no shimming or timing required; the taper ensures consistent, repeatable mounting every time. Combined with its compact size and lightweight profile, it delivers a sleek, low-profile suppressor setup without sacrificing reliability.
This model is 5/8-32 thread size. YHM also offers the sRx Short Brake in 5/8-24 and 11/16-24 if your barrel requires a different pitch.
Yankee Hill Machine
The Yankee Hill Machine SHORT SRX Brake in 5/8-32 is a quick-detach muzzle device engineered for shooters building a modern suppressor setup without the bulk. This compact brake is the mounting foundation of YHM's sRx (Suppressor Rx) system—a no-fuss, low-profile platform designed by people who understand that a tactical rifle should look as good as it shoots. If you're tired of shimming and timing muzzle devices or wrestling with thread buildup, the sRx brake's internal taper seal locks your suppressor on solid while keeping gas and debris off the threads entirely.
Built from 4140 steel with a black phosphate finish, the SHORT SRX brake measures just 1.6875 inches long and 0.75 inches in diameter—meaning it adds almost nothing to your gun's footprint or weight compared to traditional quick-detach suppressors. The large taper in front of the threads guarantees repeatable mounting every single time; no guessing, no wobble, no fidgeting at the range. Because there are no moving parts and the design requires no timing to your barrel, setup is genuinely simple. You can even leave it permanently installed if your mission calls for it.
The sRx brake threads directly onto your barrel (5/8-32 in this case) and mates with YHM's sRx Adapter—the matching quick-detach interface that lets you mount, remove, and remount your suppressor with confidence. This is the brake for hunters, precision shooters, and tactical operators who value reliability and aesthetics equally. The sRx system is built tough enough for hard use without the complexity of older mounting schemes.
| Brand | Yankee Hill Machine Co |
| Model | SHORT SRX Brake (YHM-4445-MB) |
| Thread Size | 5/8-32 |
| Length | 1.6875 inches |
| Diameter | 0.75 inches |
| Material | 4140 Steel |
| Finish | Black Phosphate |
| Mounting Type | sRx Quick-Detach (requires YHM sRx Adapter) |
Yes. The SHORT SRX Brake is the barrel-mounted component of the sRx system. To take advantage of the quick-detach suppressor mounting capability, you'll also need the YHM sRx Adapter (YHM-4400), which attaches to the brake's quick-detach interface. The brake itself threads directly onto your 5/8-32 barrel.
Yes. The sRx brake can be permanently attached to your barrel if you prefer not to use the quick-detach system. It will remain secure with no moving parts to worry about.
The sRx design features a large internal taper seal in front of the threads that locks your suppressor on tightly and seals gases away from the barrel threads—preventing carbon buildup and debris accumulation. There's no shimming or timing required; the taper ensures consistent, repeatable mounting every time. Combined with its compact size and lightweight profile, it delivers a sleek, low-profile suppressor setup without sacrificing reliability.
This model is 5/8-32 thread size. YHM also offers the sRx Short Brake in 5/8-24 and 11/16-24 if your barrel requires a different pitch.
