Description The AAC BlackOut Flash Hider is designed for 51T mounts and reduces visible muzzle flash, particularly on short barrels. Its open-end 3-prong configuration is described as stronger than comparable 4-prong designs and avoids wear issues associated with closed-end units. According to the manufacturer, the BlackOut is machined from a high-strength aerospace steel alloy and finished in a corrosion-resistant SCARmor coating. A Rocksett is included for secure mounting. Key Specifications The product type is Flash Hider. The model is Blackout. The unit fits 51T Mount systems. Caliber compatibility is listed as .223 REM/5.56 NATO. The thread pattern is 1/2×28. The finish is described as SCARmor corrosion-resistant finish. The design is an open-end 3-prong configuration. A Rocksett is included for mounting security. The listed weight is 0.35. The listed length is 5.8. Built for durability and reliable service on platforms that use the 51T interface, the AAC BlackOut offers a compact, mechanically robust option for reducing flash signature without adding complex or closed-end geometry. Its machined construction and corrosion-resistant finish aim to provide lasting function under routine use while the included Rocksett helps maintain secure attachment during operation.
