Arsenal Model SLR107F, 7.62x39mm cal. semi-auto carbine. Serial #XM551135, mfg. Bulgaria. New in the box. 16" barrel with muzzle brake. Excellent bore. Black matte finish is 100%. Adjustable rear sights. Plumb colored furniture side folding stock. One 30-rd. magazine. Factory box. No papers. Probably the best AK currently available.