SilencerCo ASR Muzzle Brake, M18x1.5

The Silencer Co ASR Muzzle Brake (Silencer Co part no. AC855) threads onto an M18x1.5 barrel and doubles as both a recoil-reducing brake and the mounting point for SilencerCo’s ASR quick-attach suppressor system. Shooters run it bare as a standalone brake to tame muzzle rise, or attach a compatible ASR-equipped suppressor directly to the brake’s threads for a fast, repeatable mount. It’s a Title I accessory, not a regulated firearm part, built for AR-platform and bolt-action rifles chambered for barrels cut to this thread specification. Anyone already invested in SilencerCo’s ASR mounting ecosystem will want this brake on any barrel they plan to run a suppressor on.

Key Specifications

• Threads onto an M18x1.5 barrel for direct installation.
• Functions as a recoil-reducing muzzle brake when run without a suppressor.
• Provides the mounting interface for SilencerCo’s ASR quick-attach system.
• Weighs a light 0.25 lb shipping weight.

Frequently Asked Questions

What thread does this brake use? It’s cut for an M18x1.5 barrel.

Can this brake mount a suppressor? Yes, it serves as the mounting point for SilencerCo’s ASR quick-attach suppressor system.

Buy the SilencerCo ASR Muzzle Brake, M18x1.5

Tame recoil and set up quick-attach suppressor mounting with this SilencerCo ASR brake. Browse our full AR muzzle devices selection and order from our Lubbock, Texas gun shop for fast, direct shipping.