SilencerCo ASR Muzzle Brake | .30 Cal | 5/8-24 | AC591

The SilencerCo ASR Muzzle Brake (AC591) is a three-port muzzle brake designed for .30 caliber/7.62mm rifles with 5/8-24 threads. It is built to interface with the SilencerCo ASR mounting system and compatible Specwar, Omega and Harvester ASR families, providing one-hand-on/one-hand-off attachment and detachment. The brake’s porting pattern is intended to reduce felt recoil and muzzle climb in a repeatable, serviceable package. Typical applications include precision/range shooting and competition use where rapid, reliable suppressor or accessory attachment is required.

Product Specifications

• The product type is Muzzle Brake.
• The model is ASR.
• The manufacturer part number is AC591.
• The thread pattern is 5/8-24.
• The NFA thread pattern is listed as 5/8×24.
• The caliber listed is .30 Cal / 7.62mm.
• The finish is Black.
• The material is listed as Steel.
• Compatibility includes Specwar, Omega, and Harvester ASR mounting systems.
• The brake uses a 3-port design to help mitigate recoil and muzzle climb.
• Included with the brake is a shim set and Rocksett for installation.
• The listed length is 2.5.
• The listed weight is 0.25.
• The threads are specified as 5/8-24.
• The UPC is 817272011432.

Crafted for reliable ASR compatibility and uncomplicated field use, the ASR Muzzle Brake offers a straightforward mounting interface and a compact footprint that suits a range of precision and training scenarios. Its included shim set and Rocksett help ensure repeatable alignment and secure installation, making it a practical choice for shooters who value workflow efficiency and robust component compatibility.