This is a brand new old stock Chinese SKS barrel for the pinned style guns. Chamber is finished. Do not appear to be chrome lined. There is no gas hole drilled, so could be used on other applications. Muzzle end is about 0.760 " for about 1.525". Muzzle is about 0.558", overall length is about 20 1/2 inches. Bore is new never had a round fired through it, outside will have some marks from storage.
