The SilencerCo ASR Muzzle Brake (brand part number AC591) is a .308/7.62 NATO three-port muzzle brake threaded 5/8-24 and compatible with all SilencerCo ASR Mounts. SilencerCo built it for quick and easy one-hand-on, one-hand-off attachment and detachment, so it works whether a suppressor is mounted or not. The three-port design effectively reduces felt recoil and muzzle climb on its own, and each ASR muzzle brake ships with a shim set and Rocksett for a secure, properly indexed application.

Key Specifications

• Threaded 5/8-24 for .308/7.62 NATO AR-pattern barrels.
• Rated for .308 Winchester/7.62 NATO.
• Measures approximately 2.5 inches overall length.
• Compatible with all SilencerCo ASR Mounts.
• One-hand-on, one-hand-off quick attachment and detachment for a suppressor.
• Three-port design reduces felt recoil and muzzle climb, even standalone.
• Ships with a shim set for proper indexing on the barrel.
• Ships with Rocksett thread locker for a secure application.
• Weighs approximately 0.25 lb, adding minimal mass to the muzzle.

Frequently Asked Questions

What mounts is this brake compatible with? All SilencerCo ASR Mounts.

Does it need a suppressor to work? No, the three-port design reduces recoil and muzzle climb on its own.

What’s included with the brake? A shim set and Rocksett for a secure, properly indexed installation.

Buy the SilencerCo ASR Muzzle Brake, .308/7.62 NATO

Get an ASR-compatible brake that is ready for a suppressor the moment you add one. Order it from our Class 3 parts and accessories selection at our Lubbock, Texas gun shop for fast, direct shipping.