They where built in Kalispell Mont. and I think I used about six or seven of their barrels in the early 90s and I still own one on a .58. They were a quality barrel, bored true, good clean round bottom rifeling, breach threading was good, the only thing negative I can think of is they left the flats with alot of machine markings and I spent a lot of time drawfileing them clean, but for 110.00 bucks even then they where a good barrel. Hope that helps you