The BLACKOUT® flash suppressor is the most efficient design available. The proprietary features eliminate muzzle flash, even on CQB-length barrels. The BLACKOUT® is inherently stronger and more impact resistant than four prong designs, while not being subject to the rapid erosion of closed-ended units. A high strength corrosion-resistant aerospace alloy, and ultra-hard Nitride finish provide the highest level of durability. All Blackout flash suppressors are machined from high strength aerospace steel alloy and coated in a hard durable corrosion resistant SCARmor finish.

This 90-Tooth Blackout flash hider works in conjunction with AAC’s ratchet taper mount silencers an evolutionary step forward from the original 51-Tooth ratchet mount design. The new 90T gear on the flash hider interfaces with a spring biased ratchet lever on the suppressor to eliminate the potential for the silencer to inadvertently unthread during firing. The flash hider’s finer pitch external ACME thread and improved low angle body taper snug it up securely with the correspondingly angled surface inside the silencer creating a rock solid platform.

*Note – SR series (SR-5/SR-7) 90T mounts are not interchangeable with any other 90T mounts or legacy 51T.