16″ 5.56 M4 Carbine FSB Rifle Kit

Features

Barrel: Chrome Moly steel barrel chambered in 5.56 NATO with a 1:7 twist rate, M4 barrel extension, and a carbine-length gas system. This phosphate M4 barrel is finished off with a standard handguard, F-Marked gas sight base, and A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized, features a forged upper receiver. These uppers are made for us right here in the USA by oue own manufacturer.

Bolt: Full-auto profile bolt carrier group. Milspec Carpenter No. 158® steel bolt. Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec. 

Lower Build Kit: Includes Classic M4-Style Stock, A2 Pistol grip, Classic Lower Parts Kit and Mil-Spec diameter 6-position buffer tube assembly. Everything you need to finish your stripped lower.

Specs
Barrel Length: 16″
Gas System: Carbine-Length
Barrel Profile: M4
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Phosphate
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: DPMS Retro Carbine Handguards, Black
Stock: DPMS Retro M4 Adjustable Stock, Black
Grip: DPMS Retro A2 Grip, Black
Fire Control Group: DPMS Mil-Spec Fire Control Group
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-Auto
Charging Handle Included: Yes
Overall Length: 24.5″