SilencerCo ASR Muzzle Brake | AC858 | 3/4×24 .338

The SilencerCo ASR Muzzle Brake (AC858) is a 3-port muzzle device machined for use with .338-caliber firearms that accept a 3/4×24 thread. Designed to work with SilencerCo’s ASR mounting system, it offers quick one-hand-on/one-hand-off attachment and detachment. The brake is finished in black and constructed from steel for durability in field use.

Typical applications include precision long-range shooting and big-bore field use where managing felt recoil and muzzle rise aids follow-up shots and shooter comfort.

Product Specifications

• The model is listed as ASR.
• The manufacturer part number is AC858.
• The thread pattern is 3/4×24.
• The thread type is 3/4-24.
• The product type is a Muzzle Brake.
• The listed caliber/gauge is 338 Cal.
• The material is specified as Steel.
• The finish is described as Black.
• The fit is listed as Harvester 338.
• The product description notes it is a 3/4×24 Muzzle Brake.
• Included with the device is a shim set and Rocksett for installation.
• The listed weight is 0.25.
• The UPC is 817272011845.

This ASR muzzle brake emphasizes straightforward, repeatable attachment to SilencerCo ASR mounts and a compact 3-port design intended to reduce felt recoil and muzzle climb on appropriate .338 platforms. Its steel construction and black finish provide a durable, low-profile muzzle device option for big-bore shooting applications.

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