11.5″ 4150V Chrome Moly vanadium steel, phosphate coated and chambered in 5.56 NATO with a 1 in 7″ twist. The Carbine-length gas barrel is finished off with a Lightweight 10.5″ M-Lok rail, a low profile gas block, and an A2 Flash Hider. Includes Forged 7075-T6 A3 AR Mil-Spec that is hard coat anodized for durability.

*Not for sale to residents of the states of New York or New Jersey.

In stock

SKU: AR15-556-PISTOL-BUILDKIT-11.5-PHOSPHATE-08 Categories: , , , , , ,

Note: your jurisdiction may require you to be a licensed FFL or licensed gunsmith to purchase this product.

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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

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