Features - Barrel: 7.5 Chambered in 5.56 NATO with a 1:7 twist rate M4 barrel extension and a pistol length gas system. This phosphate barrel is finished off with a DPMS Quad Rail free-float rail .750 diameter low profile gas block and an A2 flash hider. - Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer. - Bolt: Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is parkerized outside and chrome lined inside. - Lower: These forged lowers are quality made using 7075-T6 aluminum and are marked MULTI for caliber. Finish is hard coat anodize. Finished with an A2 pistol grip DPMS adjustable CAR brace and 6 position 7075 buffer tube. The fire control group is a mil-spec single-stage assembly. - Details - Model: Kitty Kat - Barrel Length: 7.5 - Caliber: 5.56 NATO - Barrel Profile: Heavy - Barrel Steel: Chrome Moly Vanadium - Barrel Finish: Phosphate - Chrome Lining: No - Muzzle Thread Pattern: 1/2 x 28 - Twist Rate: 1:7 - Barrel Extension: M4 - Gas System Length: Carbine - Diameter at Gas Block: .750 - Gas Block Type: Low-Profile Gas Block - Muzzle Device: A2 -style - Receiver Material: Forged 7075-T6 - Receiver Type: M4 - Handguard Type: DPMS 6.5 Quad Rail - Bolt Material: Carpenter 158 Steel - Bolt Carrier Profile: Full Auto - Fire Control Group: Mil-Spec FCG - Grip: DPMS A2 Grip Black - Buffer Tube: 7075 T6 Aluminum - Adjustment: 6 Position - Pistol Brace: DPMS Adjustable CAR Brace - Magazine: 1 30 Round DPMS Aluminum Magazine