Manufacturer: Colt Defense LLC; (800) 962-2658, ext. 1450
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Caliber: 5.56x45 mm NATO (.223 Rem.)
Action Type: Gas-operated, semi-automatic center-fire rifle
Receiver: Upper and lower, forged 7075-T6 aluminum
Barrel: 16.1", chrome-moly, button rifled, chrome lined Rifling:Six-groove, 1:7" right-hand twist
Magazine: 20- or 30-round box
Sights : Height-adjustable flip-up front post; rear sight adjustable for windage and elevation, with 0.069" flip-up aperture; top, side and bottom Picatinny rails
Trigger: Single-stage, 7-lb., 4-oz. pull
Stock: Collapsible polymer: length of pull, 10" to 13"; drop at heel, 1/2"; drop at comb, 1/2"
Overall Length : 351⁄4" (buttstock extended), 32" (buttstock folded)
Weight : 7 lbs., 1 oz.
Accessories:Two 20-round magazines, quick-detachable front sling swivel, nylon sling, cleaning kit, owner's manual