Caliber: 5.56 NATO
Barrel Length: 16 inches
Barrel Profile: M4
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread Pattern: 1/2″ x 28
Twist Rate: 1 in 7″
Barrel Extension: M4
Gas System Length: Carbine
Diameter at Gas Block: .750″
Gas Block Type: F-marked Front Sight Base
Muzzle Device: A2 -style
Receiver Material: Forged 7075-T6
Receiver Type: M4
Handguard Type: M4 with heat shields
Bolt Material: Carpenter 150 Steel
Bolt Carrier Profile: Full Auto
Fire Control Group: Standard Mil-Spec Trigger Group
Buffer Tube Length: Carbine
Buffer Tube Diameter: Mil-spec
Overall Length: 32 inches
Weight (as configured): 6.8 lbs
Barrel: Chrome Moly steel. Chambered in 5.56 NATO, with a 1/7 twist, M4 barrel extension, and a carbine-length gas system. Barrel is 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. Uppers include forward assist and dust cover. These uppers are made for us right here in the USA by a mil-spec manufacturer.
Bolt: Full-auto profile bolt carrier group. Shot-peened, mil-spec Carpenter No. 158® steel bolt. Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec. 8620 steel M-16 profile carrier is chrome lined and phosphate coated.
Lower: These forged lowers are quality made using 7075-T6 aluminum and are marked “MULTI” for caliber. Finish is hardcoat anodize.. Mil-spec diameter 7075-T6 buffer tube is hardcoat anodized, has 6 adjustment positions, is fitted with a PSA M4 Carbine Stock. The the fire control group is a PSA mil-spec finished, single-stage assembly.