YHM SHORT SRX BRAKE 5/8-32

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.

Key Features

• Quick-detach sRx mounting interface with internal taper seal—no thread buildup, consistent lockup every time
• Compact 1.6875" length and lightweight design minimizes overall system profile
• No-time-needed mounting—large taper seat delivers repeatable indexing without shimming
• 4140 steel construction with black phosphate finish for durability and corrosion resistance
• Can be permanently attached to barrel or used with sRx Adapter for quick-detach suppressor mounting
• No moving parts—simplified, reliable operation

Specifications

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)

Frequently Asked Questions

Do I need anything else to use this muzzle brake?

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.

Can I leave this brake permanently on my gun?

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.

What makes the sRx brake different from other quick-detach muzzle devices?

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.

What thread pitch is this brake?

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.