The dt sport mod 2 is an upgraded version of the dt sport.The mod 2 sports a 16" light weight, melonite barrel with 1x9 twist, 6 position m4 stock, car hand-guards with single heat shields, enhanced trigger-guard, and a2 flash hider.It comes with a rear back-up polymer sight, (1) 30rd magazine and a ca approved gun lock.Metal Finish: BlackAction: Semi-AutoCaliber: 5.56x45mm NATOBarrel Length: 16"Capacity: 30+1Trigger: StandardSafety: LeverOal: 32.62"- 36.37"Weight: 5.80 lbsStock Description: 6 Position M4Muzzle: A2 Flash HiderReceiver Material: AluminumSights: A2 FrontBarrel Description: 4140 SteelTwist: 1:9"Barrel Length Range: 16" to 16.99"Weight Range: 5 lbs to 5.99 lbsHand: RightStock Finish Group: BlackMetal Finish Group: Blued/Black