Hello, I recently found this site and it looks like it's full of good information and knowledge. I am interested in knowing as much as I can about a carbine I have. I have looked for identifying marks on the exposed parts I can see and they are as follows:

Barrel: Underwood over 3-44
Receiver: 2676... and under the ser. no. is a "B"
Bottom of trigger guard: "O"
Rear sight side: I.R.CO. 7160060
Stock markings:
-left side of stock is stamped with ser. no. that matches receiver
-In sling slot on ramp: "10"
-Top left corner of stock near receiver: "5 0"
-Under stamped ser. no.: O.G. inside of a box

It also has a bayonet lug and swivel safety.

Are there any other locations I can obtain identifying marks that would help with your diagnosis?

And, thank you to the experts here for helping me understand what I have.

Skyman
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