SilencerCo ASR Flash Hider AC141 | .223 / 5.56 | 1/2-28

The SilencerCo ASR Flash Hider (AC141) is a muzzle device designed for compatibility with SilencerCo’s ASR (Active Spring Retention) quick-attach/detach mounting system. It accepts 1/2-28 tpi muzzle threads and is intended for use with .223 Rem / 5.56 NATO platforms. The ASR system allows one-hand attachment and removal of compatible SilencerCo suppressors, and the design incorporates resonance suppression to reduce the tuning-fork effect seen in some three-prong devices.

Typical uses include range training with suppressor-equipped rifles and competition/practical shooting where rapid, repeatable attaching and detaching of a suppressor is desired. The device’s locking ring helps prevent rotation or loosening under sustained use.

Product Specifications

• The model is ASR.
• The manufacturer is SilencerCo.
• The product type is Flash Hider.
• The material is listed as Steel.
• The caliber/size is .223 REM / 5.56 NATO.
• The thread pattern is 1/2-28 tpi.
• The NFA thread pattern is 1/2×28.
• The length is 2.4.
• The listed weight is 0.25.
• The fit is specified as Specwar Omega Harvester.
• An additional feature is 1/2×28 Thread Pattern.
• Another listed feature is Allows for QD of Specwar Sup.
• The package dimensions are 6.5 x 4.6 x 1.5.
• The UPC is 817272010329.

Purpose-built to integrate with the ASR ecosystem, this ASR Flash Hider streamlines suppressor swaps and addresses resonance issues common to three-prong designs. Its straightforward one-hand-on, one-hand-off operation and locking ring make it practical for users who frequently change muzzle accessories, while the steel construction provides a durable interface for ASR mounting. The AC141 is suited to shooters prioritizing reliable suppressor attachment and minimal added complexity at the muzzle.