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 | 1/2×28
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 | 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
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.
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