The apc223 platform utilizes a hydraulic buffer system to significantly reduce felt recoil and muzzle rise, while providing increased terminal performance, intermediate barrier penetration and sheer energy on target, in a size optimized for discrete deployment.Action: Semi-AutoCaliber: 5.56x45mm NATOBarrel Length: 16.50"Capacity: 30+1Safety: AmbidextrousOal: 33"Weight: 7.20 lbsMuzzle: Flash HiderSights: Optic ReadyTwist: 1:7"Barrel Length Range: 16" to 16.99"Weight Range: 7 lbs to 7.99 lbsHand: Ambidextrous