Can a carbine made in jan-march 1944 have a 12-43 barrel?

[levallois]

And be correct? Thanks!

[Tuna]

It would depend on who made the carbine and the serial number. So maybe yes and maybe no.

[levallois]

Inland 3.1 million?

[BrianQ]

A 3.1 million Inland would have been assembled no later than December 1943.

[levallois]

Ok, so the barrel matches.

[pelago]

some level of higher than organization/user maintenance put a new barrel on it,
comes in with bad barrel, tech pulls old one and grabs replacement and next one in the box

[BrianQ]

Ok, so the barrel matches.

Yes, a 12-43 dated Inland barrel would be appropriate on a 3.1 million.