Specifications include, but are not limited to: Calibre 5.56mm NATO Chamber for 5.56mm & .223cal. Lower Receiver Forged RRA LAR-15 Upper Receiver Forged A4 Barrel Chrome lined 16 inch lightweight, 1:9 Twist Muzzle Device A2 Flash Hider/1/2-28 thread Trigger 2-stage Safety Amber dexterous Front Sight RRA Flip Front Sight Gas Block Assembly w/Tritium Front Post Rear Sight A.R.M.S. #40 Flip-up Rear Sight Pistol Grip Hogue Rubber Pistol Grip Black Butt stock RRA 6-position Tactical CAR Stock Hand guard RRA Quad Rail Free Float, CAR Length Weight/Length 6.8 pounds/35.25 inches Accuracy 1.5 MOA at 100 yards Magazines Three (3) Magpul P-Mags w/window, black in color Sling Magpul MS1 MS3 with MAG 516 Paraclip adaptor, black in color