Palmetto State Armory Classic Freedom Keymod 11″ AR-15 which features: Chrome moly steel barrel, Chambered in 5.56 NATO, with a 1/7 twist, M4 barrel extension, and a mid-length gas system; Medium profile barrel is finished off with an 11” PSA Keymod free-float hand guard, low-profile gas block, and A2 flash hider. The A3 upper receiver is a forged 7075-T6 machined to MIL-SPECS and hard coat anodized and are made in the U.S.A The Bolt Carrier Group is a Full-auto profile bolt carrier group.; Shot-peened, mil-spec Carpenter; steel bolt; 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. The forged lower is quality made using 7075-T6 aluminum and are marked “MULTI” for caliber. Finish is hardcoat anodized. Mil-spec diameter 7075-T6 buffer tube is hardcoat anodized, has 6 adjustment positions, and is fitted with a PSA M4 carbine stock.;The A2-style grip complements the PSA mil-spec finished single-stage fire control group.