SilencerCo ASR Muzzle Brake AC1557 | .458 Win Mag

The SilencerCo ASR Muzzle Brake AC1557 is a three-port muzzle device designed for use with SilencerCo ASR mounts and Hybrid systems. It is finished in black and constructed from steel. The ASR brake offers quick one-hand-on/one-hand-off attachment to compatible mounts and ships with a shim set and rocksett for straight, repeatable installation.

This muzzle brake is suited to recoil management on large-caliber rifles and for improving follow-up shot cadence during precision work. Common applications include field use with big-bore rifles and controlled-range accuracy work with ASR-compatible suppressor systems.

Product Specifications

• The manufacturer is SilencerCo.
• The model is ASR.
• The part number is AC1557.
• The finish is Black.
• The material is Steel.
• The device is a Muzzle Brake.
• The size designation is .46.
• The listed caliber/gauge is .458 Win Mag.
• The thread pattern is 5/8-32 tpi.
• The product fit is listed as Hybrid.
• The ASR brake features a 3-port design for recoil control and reduced muzzle rise.
• The package includes a shim set and rocksett for installation.
• The product weight is 0.25 (as listed).
• The overall length is 6.5 (as listed).
• The UPC is 817272016864.

The ASR Muzzle Brake AC1557 delivers a straightforward, durable mounting solution for large-caliber rifles using SilencerCo’s ASR and Hybrid interfaces. Its three-port geometry and included installation hardware make it a practical choice for shooters who prioritize reliable attachment and measurable recoil mitigation in heavy-bore applications.

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