The colt le6920 features a 16.1" chrome-lined barrel with a 1:7" twist and a matte black metal finish.This model has no furniture or sights and is ready to customize with your free-floating handguard or rail system, buttstock, and sights or optics.Metal Finish: Black Hardcoat Anodized/Black PhosphateAction: Semi-AutoCaliber: 223 Rem/5.56 NATOBarrel Length: 16.10"Capacity: 30+1Trigger: Single-StageSafety: ReversibleOal: 32"Weight: 5.30 lbsMuzzle: Muzzle BrakeReceiver Material: 7075-T6 AluminumSights: None, Optic ReadyBarrel Description: Chrome LinedTwist: 1:7"Barrel Length Range: 16.00" to 17.99"Weight Range: 5 lbs to 5.99 lbsHand: RightMetal Finish Group: Blued/Black