“Bushmaster Bravo Zulu AR Upper Assembly – Black | 5.56 NATO | 16″” Barrel | 14″” BFI Free Float M-LOK Rail | Snake Charmer Muzzle Brake”

“Specifications: – 5.56 NATO – 16″” Barrel with a 1×8 Twist Rate – 16″” length – MLOK® 14″” Free Float Rail with QD Sling Swivel Mounts – Salt Bath Nitride Bolt Carrier Group – MPI Tested Bolt – Snake Charmer™ Muzzle Brake    Features:  – Mid- Length Gas System – Optics Ready “

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