Barrel: 4" chrome moly vanadium steel barrel. Chambered in 9mm (9x19), with a 1/10 twist rate. The barrel is nitride treated for durability and finished off with a PSA 5" Lightweight M-Lok Rail, and a PSA Fluted Flash Can muzzle device. Bolt Carrier Group: Gen 4 Hybrid 9mm BCG. Nitride treated 8620 steel bolt, with an enhanced firing pin and external 5.56 style extractor. Flash Can: Palmetto State Armory's new fluted flash can. This is a solid 6061 aluminum device that is designed to direct muzzle gases and the muzzle flash forward. Threaded 1/2-36 for 9mm. Black military-style hard anodizing. Lower: Billet 7075 T6 aluminum and then hard coat anodized, these lowers are purpose-built to accept 9mm Glock®-style magazines. Designed to work with PSA's new 9mm Gen4 Hybrid uppers. The lower is assembled with a Palmetto State Armory MOE lower build kit with a Magpul Grip, PSA Enhanced Polished Trigger (EPT) Red Dot: Sig Sauer Romeo5 1x20mm Compact Red Dot Sight. Magazine: Glock OEM 33rd mag. $670 OBO or $590 no red dot. Must be ID resident and have Idaho ID. No sales to prohibited person(s).