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PSA 16" Midlength 5.56 NATO 1:7 Nitride 15" Lightweight M-Lok Upper w/ BCG and CH

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<p><strong>Barrel</strong>: 16" 4150V Chrome Moly steel. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a mid-length gas system. The barrel is finished off with a PSA 15" Lightweight M-Lok free float rail, a .750 gas block, and an A2 flash hider. New Rail design with a fresh look and stippling on the sides of the rail for increased grip.</p> <p><strong>Upper</strong>: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer.</p> <p><strong>Bolt</strong>: Full-auto profile bolt carrier group. Milspec Carpenter No. 158® steel bolt, Shot Peened, High pressure tested, Mag particle inspected, Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked per Mil-Spec. 8620 steel M-16 profile carrier is chrome-lined and phosphate coated.</p>

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