i thought it would be useful to consolidate into this thread some of the disparate info on these guns that I have found scattered online.

This is a well-known article that is sort of, it seems to me, where everyone begins their study of the USRA model. The author, William McCarter, former president of the Ohio Gun Collectors Association, is the father of Sean McCarter, cited above in the YouTube link.











And here's a 2019 thread on USRAs from our own forum: I Love the H&R USRA