Diamondback firearms' db15 rifle is made entirely in the usa.It uses a gas-impingement system and high quality cnc machined components.The db15cc rifle features a melonite coated, 4140 chrome-moly, free-float barrel.It also has a forged 7075 t6 aluminum lower along with an a3 flattop upper receiver, no sights, and a carbine length gas system.This model features magpul furniture in a kryptek mandrake finish and includes the magpul mvgAction: Semi-AutoCaliber: 5.56x45mm NATOBarrel Length: 16"Capacity: 30+1Safety: Manual ThumbOal: 31.75"- 35"Weight: 6.20 lbsStock Description: Magpul CarbineMuzzle: A2 Flash HiderReceiver Material: 7075-T6 AluminumSights: Optic ReadyBarrel Description: Chromoly SteelTwist: 1:8"Barrel Length Range: 16" to 16.99"Weight Range: 6 lbs to 6.99 lbsHand: Right HandStock Finish Group: Digital CamouflageMetal Finish Group: Blued/Black