My dad had two, and my brother and I each inherited one this year. Mine's an IBM, in great condition, with an IBM barrel and Inland stock. According to the markings, it's been reworked at the same armory twice, and has most of the "newer" features. I spent yesterday researching it, (along with my Victory and my P7), and I gotta tell you, the prices I saw made me take it off the gun rack and put it in the safe. Replaced it on the rack with my 870 dove gun.