Yankee Hill sRx Q.D. Flash Hider Long 9mm 5/8x24 Black Phosphate Steel

The Yankee Hill sRx Q.D. Flash Hider (Long) is a quick-detach muzzle device built for 9mm pistol-caliber carbines and PCCs. Machined from steel with a low-glare black phosphate finish, this long variant measures 2.30 inches overall and threads onto barrels or YHM sRx adapters with 5/8x24 threads.

The sRx line is designed around an industry-standard HUB (1-3/8x24) mounting interface so a single muzzle attachment can accept YHM quick-detach suppressor mounts, blast shields, and other HUB-pattern accessories. The long configuration delivers additional signature reduction over the standard length while remaining compact and well-balanced on 9mm AR-pattern builds.

Installation is straightforward: thread the sRx long flash hider onto your barrel or sRx adapter threaded at 5/8x24. The phosphate-coated steel construction stands up to repeated fire and integrates cleanly with the rest of YHM's quick-detach sRx ecosystem.