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There's a lot to like about a muzzle device that does two jobs without making a fuss. Yankee Hill Machine's sRx Short QD Muzzle Brake knocks down recoil on your .308 or 7.62 NATO rifle while doubling as a quick-detach mounting point for your suppressor. This is the 5/8"-32 thread version, so if your barrel wears that less common pitch, this is the one you've been hunting for. Machined from 4140 steel and wearing a black phosphate finish, it's built to shrug off hard range days and dirty duty without complaint.
The magic is in the internal taper seal sitting forward of the threads. When your can spins on, that taper pulls everything into a tight, consistent lockup and seals off the connection so gas and carbon can't creep onto the threads. Anyone who has wrestled a carbon-welded suppressor off a dirty mount knows why that matters. Mounting stays repeatable, removal stays easy, and cleanup stays minimal. You'll need the YHM sRx Adapter (YHM-4400) to complete the setup, and that adapter threads onto the industry standard 1-3/8" x 24 HUB pattern, which opens the door to a wide range of modern suppressors beyond just YHM cans.
No shims, no timing, no moving parts. The brake is timeless, meaning you thread it on and torque it down without fiddling with alignment, and it can even be permanently attached to the barrel if your build calls for it. The short profile adds minimal length and weight to your rifle, so you keep the trim look and handy balance that made you pick a compact setup in the first place. It's also lighter than a lot of QD mounting systems out there, which your support arm will appreciate on long days.
YHM has been machining quality parts in Massachusetts since 1951, and this American-made brake carries their lifetime warranty. Simple, tough, and easy to live with. That's about all you can ask of a muzzle device.
Yes. The sRx Short Muzzle Brake is designed to pair with the YHM sRx Adapter (YHM-4400), which is what actually connects your suppressor to the brake. The adapter threads onto standard 1-3/8" x 24 HUB mounts, so it works with a wide range of HUB-compatible suppressors, not just YHM models. Without the adapter, this functions as a standard muzzle brake only.
No, and that's one of its best features. The brake uses a timeless design with no moving parts, so orientation doesn't matter. Thread it on, torque it to spec, and you're done. It can also be permanently attached to the barrel if your build requires it.
The taper sits in front of the mounting threads and does two things. It pulls the suppressor into a tight, repeatable lockup every time you mount it, and it seals the connection so hot gas and carbon can't foul the threads. That means consistent alignment and no fighting a stuck can when it's time to take it off.
This version is cut for 5/8"-32 muzzle threads, which is a less common pitch found on certain .308 and 7.62 NATO barrels. Check your barrel's thread specs before ordering, since 5/8"-24 is the more typical .30 caliber pattern and the two are not interchangeable. YHM offers the sRx Short brake in 5/8"-24 and 11/16"-24 as well if your barrel uses a different pitch.
| UPC | 841812101802 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | YHM-4445-MB-32 |
| Caliber/Gauge | .308 / 7.62 NATO |
| Color | Black |
| Length | 7.1 |
| Model | |
| Package Height | 1.4 |
| Package Width | 3.2 |
| Product Type | Accessory-Muzzle Brakes |
| Shipping Weight | 0.12 |
| Thread Pattern | 5/8"-32 tpi |
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