Based on the Russian AK103 the KR-103 is our semi-automatic rifle 100% made in the US. This gas-operated rifle comes with a 16.33 inches chrome-lined cold hammer-forged barrel. It is chambered in 7.62x39mm and feeds with a 10 round magazine. It has a forged trunnion a forged carrier side optic rails and an improved muzzle brake. - KR-103 SFS is a dependable robust and high-performing rifle made to give you the best experience of an AK. It is a built to last rifle with the reliability of Kalashnikov USA. - KR-103 SFS is from Kalashnikov