PSA 16" M4 5.56 NATO 1:7 PHOSPHATE CLASSIC RIFLE KIT WITH VORTEX STRIKEFIRE II - 5165502312

Barrel Length: 16" Gas System: Carbine Barrel Profile: M4 Barrel Steel: 4150V Chrome Moly Vanadium Barrel Finish: Phosphate Chrome Lining: None Muzzle Thread: 1/2-28 Chamber: 5.56 NATO Twist Rate: 1:7 Barrel Extension: M4 Diameter at Gas Block: .750" Gas Block Type: F-marked Front Sight Base Muzzle Device: A2 Flash Hider Receiver Material: Forged 7075 T6 Aluminum Receiver Type: M4 Handguard Type: PSA Classic Polymer with Heat Shield Bolt Carrier Group: Full-Auto Profile Phosphate BCG, Carpenter 158 Bolt Fire Control Group: Standard AR-15 Mil-Spec Trigger Group Buffer Tube: Mil-Spec 6-Position Tube Stock: PSA Classic Adjustable Carbine Stock Grip: PSA Classic A2 Pistol Grip Optic: Vortex Strikefire II Red/Green 4 MOA Optic