Knights Armament Co(KAC), SR-25 ACC, 7.62mm. This carbine is new in the box, direct from KAC to me. This is a very limited run(50 or less, I'm told) called a "CC Duty Grade FDE Special". 16" 5R Cut, Chrome Lined 1:10 twist barrel, with M-LOK fore end, and KAC QDC muzzle device. This is a factory FDE coated rifle, with no cosmetic imperfections. I looked this one over all i can say is "This is beauty". Comes with a nice, .599" test target, owners manual, one magazine.