PSA PA-15 16" M4 Nitride 5.56 NATO 13" Lightweight Hex M-LOK Classic AR-15 Rifle, FDE

Barrel: Chambered in 5.56 NATO, this 16 inch M4 profile barrel features an M4 barrel extension and a carbine-length gas system for reliable operation and balanced recoil impulse. A Nitride finish enhances durability and corrosion resistance. The barrel is paired with an FDE PSA 13 inch Lightweight Hex M-LOK free float rail, a .750 low-profile gas block, and an A2 flash hider.Upper: Forged 7075-T6 A3 AR upper receiver machined to mil-spec standards and finished with a hard coat anodized treatment for durability. The upper includes a forward assist and dust cover and is manufactured in the USA by a mil-spec producer.Bolt: Full-auto profile bolt carrier group with a Carpenter No. 158 steel bolt that is shot-peened and built to mil-spec standards. The gas key is hardened to USGI specifications, secured with Grade 8 fasteners, and properly staked for long-term reliability.Lower: Forged 7075-T6 aluminum lower receiver marked MULTI for caliber compatibility and finished with a hard coat anodized coating. The lower is equipped with a PSA Classic grip, a six-position adjustable stock, and a PSA mil-spec single-stage fire control group.