Hi guys i have an M1 Carbine that seems to be a mutt, she has the ser# 3156 in front of the rear site, Natl' Ord behind it and the 2 line US Carbine Cal 30 M1 in front of the reciever and IR in the sling well, and no other markings on barrel,or side of reciever etc, i'm thinking maybe a rebuild, can anyone help,it was my gramps gun he was in ww2 and i think Korea
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