10/14/20 - This is a near-mint and hard to find IBM M1 Carbine from either late 1943 or early 1944. Less than 6% of total M1 Carbine production was done by IBM. A full parts guide is included with the photos for this listing, but correct and IBM parts throughout. IBM barrel and receiver with BR-B marked stock that has crossed cannon cartouche on the right side. Bore is shiny with strong rifling but there is a ring of pitting at one point, though the barrel is not bulged. Stock condition is excellent and without defect.