Quote Originally Posted by RDG View Post
You see why this particular gun seems to defy classification.
First time I've seen an RIA mark on a scant stock. I had always thought they were only used by Remington or Smith Corona in A3 production, or as field replacements. I've seen/used several field replacements, and they only have the final manufacturer's first letter marked, if anything. (Keystone has a "K" on the forend tip, with a bomb. Springfield S in the mag cutoff recess, etc.)
So, re-stocked with a field replacement during tear down and rebuild at Rock Island between 1941-1946 (Frank Krack stamp range), and re-proofed too. Does this increase the chance that it was a USMC hold-on-to? Is that an extra vent hole on the right side of the receiver in the last pic? can't see it in the first pic close up.