I received this Friday for Royal Tiger. While I’m not an M1 Carbine expert I’ll try to relate to you what it is that I’ve got here.
It’s a Quality Hardware receiver dating to 1944. Inland barrel from 1944 that gauges 00” at the muzzle with a shiny barrel. It was rebuilt between 1947 and 1958 at Rock Island with what I think are WW2 parts. The stock definitely has a toe repair and replacement hand guard.
This was the base priced M1 Carbine.
Dave