6/24/21 - This is an excellent example of an IBM Corp M1 Carbine issued to the US military in 1944. The gun has mostly mismatched parts and has added adjustable rear sight and stock lug, likely for use in the Korean war. The gun has retained most of its finish with spotty oxidation here and there. No proofs on the stock. Mint bore. Comes with an un-marked WW2-era magazine. Below is a complete parts list with markings.
Make: IBM
Receiver Date: Jan-Mar 1944
Barrel: IBM
Barrel Date: 11-43
Barrel Band: Q
Front Sight: N/A
Rear Sight: IR CO
Recoil Plate: N/A
Stock: BR-B
Stock Configuration: Low Wood
Handguard: I.W.B.
Trigger Housing: INLAND
Hammer: T.L.I.
Trigger: W
Mag Catch: N/A
Mag Release: M
Slide: W PI
Bolt: .U.
Magazine: N/A