SilencerCo ASR Flash Hider AC1561 | 9mm | 13.5×1 LH

The SilencerCo ASR Flash Hider (AC1561) is a 3-prong muzzle device engineered for use with SilencerCo’s ASR (Active Spring Retention) quick-attach mounting system. It is specified for 9mm applications and features left-hand metric threading. The device is built from steel with a matte black finish and is intended to serve as both a compatible ASR mount and an effective flash mitigation device.

Product Specifications

• The material is Steel.
• The finish is Black.
• The caliber compatibility is 9mm.
• The thread pattern is 13.5×1 LH tpi.
• The NFA thread pattern is 13.5x1mm LH.
• The model is listed as ASR.
• The product type is Flash Hider.
• The fit is specified as Hybrid.
• The hand orientation is Left Hand.
• The part is specified as not designed to be disassembled.
• The listed weight is 0.25.
• The listed length value is 6.5.
• The threads attribute is M13.5x1LH.
• The UPC is 817272016901.

This ASR Flash Hider provides a compact, ASR-compatible mounting interface while also serving to reduce visible muzzle flash and to mitigate resonance commonly seen with other three-prong devices. Its one-hand-on, one-hand-off attachment works with ASR-equipped suppressors and makes switching muzzle devices straightforward for range and competition use. The device’s locking ring design promotes secure lockup under routine shooting schedules.

Owners commonly praise the reliable one-hand attach/detach operation of the ASR mount and report that the design reduces tuning-fork resonance and helps manage muzzle rise and felt recoil.