USGI M1 Carbine Barrel Inland 6-45. Non import marked, 98% original finish with a muzzle erosion gauge of .300, basically a new barrel, type 3 barrel band KI stamped, R front sight, short skirt with virtually no slide wear pattern on the rails, Piston and nut installed with one stake mark, I see only one issue on the bottom of the barrel that looks done originally from Inland that is under the original finish, Last pic. Please feel free to ask questions and require additional pics.