This 5.56x45 semi automatic rifle is made by the world renown zastava arms factory in serbia and imported into the u.S.Rifle features an 18.25" chrome lined barrel threaded 14x1lh with a 1:7 twist.The trunnion is buldged with a 1.5mm receiver.This rifle also features a 3 position gas system so you can quickly and easily adjust to your choice of ammo and muzzle device.These rifles will work a number of 5.56 and.223 ak47 magazines.Comes with 1 30 round magazine.Action: Semi-AutoCaliber: 5.56x45mm NATOBarrel Length: 18.25"Capacity: 30+1Safety: LeverStock Description: Magpul Zhukov Side FolderMuzzle: AK SlantSights: Adjustable Front & RearBarrel Description: 18.25" Chrome LinedTwist: 1:7"Barrel Length Range: 18" to 18.99"Hand: RightStock Finish Group: Black