SilencerCo ASR 7.62 Flash Hider Suppressor Mount - 1/2"-28 Thread, Steel Matte Finish
SilencerCo
The SilencerCo ASR 7.62 Flash Hider Suppressor Mount is a quick-attach muzzle device built specifically for 7.62mm AR-10 and LR-308 platforms using a 5/8"-24 thread pattern. This is the foundation of SilencerCo's Active Spring Retention (ASR) modular suppressor ecosystem—a one-hand attach-and-detach mounting system that lets you swap suppressors between rifles without tools or guesswork. If you're running multiple .308-class rifles or want the flexibility to move a single silencer between builds, the ASR flash hider eliminates the friction of permanent muzzle device installation.
What sets the ASR system apart is the locking ring design. Once the suppressor is shouldered and locked down, it won't rotate or creep loose, even under sustained fire. SilencerCo engineered out the "tuning fork" resonance problem that plagues traditional three-prong flash hiders—the patent-pending resonance suppression delivers a cleaner, more stable platform for both the suppressor and your shooter's experience. Steel construction and matte finish mean this device handles the recoil and environmental exposure without flinching.
The ASR mounting system is compatible with a range of SilencerCo suppressors, including the Specwar, Omega, and Harvester models. Installation includes a shim set and Rocksett threadlocker, so you have everything needed to get the flash hider mounted straight and secure. Whether you're building a dedicated .308 hunting rifle or a precision AR-10 for the range, the ASR 7.62 muzzle device is the smart anchor for a modular suppressor strategy.
| Caliber | 7.62mm / .308 |
| Platform | AR-10 / LR-308 |
| Thread Pattern | 5/8"-24 |
| Material | Steel |
| Finish | Matte |
| Mount System | ASR (Active Spring Retention) |
| Included | Shim set, Rocksett threadlocker |
The ASR 7.62 is compatible with SilencerCo's ASR mounting ecosystem, including the Specwar, Omega, and Harvester suppressors. Any suppressor equipped with an ASR mount will attach and detach cleanly to this muzzle device.
Yes. The muzzle device features a 5/8"-24 thread pattern, the standard for 7.62mm rifles including AR-10 and LR-308 platforms.
The package includes the flash hider itself, a shim set for alignment and timing, and Rocksett threadlocker to secure the device to your barrel.
Yes. The locking ring design is engineered to prevent rotation and creep during heavy firing schedules. Once the suppressor is shouldered and locked into place, it remains secure.