PSA 11.5" 5.56 1/7 PHOSPHATE 10.5" LIGHTWEIGHT M-LOK MFT SBA3 PISTOL KIT

Barrel Length: 11.5" Barrel Profile: A2 Gas System: Carbine-Length Barrel Steel: 4150V Chrome Moly Vanadium Barrel Finish: Phosphate Chrome Lining: No Muzzle Thread: 1/2x28 Chamber: 5.56 NATO Twist Rate: 1:7 Barrel Extension: M4 Diameter at Gas Block: .750 Gas Block Type: Low-profile Muzzle Device: PSA A2 Flash Hider Receiver Material: Forged 7075 T6 Aluminum Receiver Type: M4 Handguard Type: PSA 10.5" Lightweight M-Lok Rail Bolt Carrier Group Included: Yes Bolt Steel: Carpenter 158 Bolt Carrier Profile: Full-auto Charging Handle Included: Yes Build Kit: Mission First Tactical SBA3 Pistol Kit, Black FEATURES Barrel: 11.5" 4150V Chrome Moly vanadium steel, phosphate coated and chambered in 5.56 NATO with a 1 in 7" twist. Carbine-length gas barrel is finished off with a PSA Lightweight 10.5" M-Lok rail, a low profile gas block, and a PSA A2 Flash Hider. Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. Featuring a mil-spec finish, these uppers are made for us right here in the USA by a mil-spec manufacturer. Bolt Carrier Group: Bolt made of mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. Build Kit: A high quality lower build kit with everything you need to assemble your AR-15 lower into a pistol. Features a Mil-Spec Fire Control Group, Mission First Tactical Engage V2 Grip, Mission First Tactical Enhanced Trigger Guard, and black oxide coated hammer and trigger springs. Also includes SB Tactical SBA3 Adjustable Pistol Brace, castle nut, latch plate, carbine buffer spring, 5 positioning mil-spec buffer tube, and standard carbine buffer.