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The LMT 4-Port Regulator Brake in 5/8×24 is one of those parts that quietly makes a rifle nicer to run. It uses an aggressive four-port design to blast gas out to the sides, which knocks down recoil and keeps the muzzle flat between shots. On a 7.62 or .308 build, that means faster follow-ups and a cleaner return to zero without wrestling the gun back down after every trigger pull.
Where the single-port version leans toward balanced comfort, this four-port layout is all about maximum recoil reduction. LMT CNC machines it from 17-4 stainless steel and finishes it in black nitride, so it holds up to heat and hard use while resisting corrosion. The tight tolerances from that machining process are a big reason it delivers such consistent repeatability, which matters a lot if you ever plan to run a can on it.
The real trick with this brake is that it's part of a mounting ecosystem. It's built to work with the LMT-AT HUB Regulator Mount Adapter as well as Dead Air Xeno-pattern mounts, so it plays nice with LMT's own ION 30, ION LT, and ION K suppressors along with Xeno-mounted cans and other HUB-compatible units. Run it bare as a standalone brake, or thread up your suppressor when you're ready. Either way you're getting the same solid lockup and alignment.
This is the 5/8×24 version sized for 7.62mm and .30-caliber barrels, weighing right around 2.8 ounces. If your barrel is already cut with 5/8×24 threads, it's a straightforward upgrade. The combination of low weight, a compact footprint, and genuine suppressor compatibility makes it a smart pick for anyone building out a modern precision or DMR-style rifle.
The four-port design is built for maximum recoil reduction and flatter muzzle behavior, which helps with faster follow-up shots. The single-port brake leans more toward balanced control and shooting comfort. If cutting recoil is your top priority, the 4-Port is the one to grab.
Yes. It's compatible with the LMT-AT HUB Regulator Mount Adapter and Dead Air Xeno-pattern mounts, so it works with LMT's ION 30, ION LT, and ION K suppressors along with other Xeno and HUB-compatible cans. You can also run it as a standalone brake without a suppressor and add one later.
This is the 5/8×24 version, which is the standard thread pitch for most 7.62mm and .30-caliber barrels. As long as your muzzle is threaded 5/8×24, it's a direct fit. Double check your thread pitch before ordering if you're not sure.
It's CNC machined from 17-4 stainless steel alloy and treated with a black nitride finish. That combination gives it strong heat and corrosion resistance for hard use. The tight machining tolerances also help it deliver consistent repeatability and return to zero.
| UPC | 850076573188 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | R-RMB5824762 |
| Caliber/Gauge | 7.62×39 (.310) |
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