AAC – AAC BLACKOUT FH 51T 5.56 15X1
Blackout 51 Tooth Flash Hider Fast Attach 5.56mm M15x1 TPI
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Proprietary features eliminate muzzle flash even on CQB-length barrels. 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. Military tested and selected.