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Big-bore rifles like the .458 SOCOM hit hard on both ends, and a good brake makes a real difference in how quickly you can get back on target. The SilencerCo ASR Muzzle Brake in 5/8×32 pulls double duty. On its own, the three-port design vents gas to fight felt recoil and muzzle rise. Pair it with a SilencerCo can running the ASR mounting system and it becomes your quick-detach mount, letting you spin a suppressor on and off with one hand in a matter of seconds.
ASR is SilencerCo's fast-attach standard, and it comes standard on the Omega 300, Chimera 300, Saker ASR, and Specwar families. It also plays nice with the Hybrid 46, Harvester series, Octane series, and Omega K series. That means one brake on your barrel can serve several different cans in the safe, which is a big part of why the ASR system has stuck around as long as it has. The .458 caliber bore on this version gives big-bore projectiles plenty of clearance, so it's the right pick for rifles like a Rock River SOCOM or other builds wearing 5/8×32 muzzle threads.
SilencerCo ships this brake with a shim set and a tube of Rocksett, so you have what you need to get the ports timed correctly without hunting down extra parts. Shims let you index the brake so the ports vent to the sides where they belong, and Rocksett holds everything in place through heat and vibration while still letting you remove the brake later if you need to. It's a straightforward job for anyone comfortable with basic muzzle device work.
Steel construction with a black finish keeps this brake ready for hard use, and the machining is what you'd expect from SilencerCo. Even if a suppressor isn't in your immediate plans, it's a solid standalone brake for a hard-recoiling rifle. When you do bring an ASR-compatible can home, your muzzle is already set up and waiting.
This brake works with any SilencerCo suppressor running the ASR quick mount system, which comes standard on the Omega 300, Chimera 300, Saker ASR, and Specwar families. It's also compatible with the Hybrid 46, Harvester series, Octane series, and Omega K series. If your can uses an ASR mount, this brake will serve as its attachment point.
The 5/8×32 thread pitch is most commonly found on .458 SOCOM barrels, including the Rock River SOCOM. The .46 caliber bore gives big-bore bullets plenty of clearance. Double check your barrel's thread pitch before ordering, since 5/8×24 is a different and far more common pattern.
Yes, it functions as a standalone muzzle brake. The three-port design vents gas to reduce felt recoil and muzzle climb, which is welcome on hard-hitting big-bore rounds. Many folks run it bare and add an ASR-compatible suppressor down the road.
SilencerCo includes a shim set and Rocksett in the package, so the essentials are covered. The shims let you time the ports so they vent to the sides, and the Rocksett secures the brake against heat and vibration. You'll just need a wrench that fits the brake's flats to snug it down.
| UPC | 817272016864 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | AC1557 |
| Caliber/Gauge | .458 Win Mag |
| Color | Black |
| Length | 6.5 |
| Model | |
| Package Height | 1.4 |
| Package Width | 4.6 |
| Product Type | Muzzle Brake |
| Shipping Weight | 0.225 |
| Thread Pattern | 5/8"-32 tpi |
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