I'm going off the top of my head, but I think the guns I've had with the Remington on the slide and not on the receiver were in the 20,000 range. I have had a 3 digit and now have a 4 digit UMC guns and all have had the BO mark with the serial number and no barrel date code. I'm guessing they were all Remington Arms by 5 digits??? I'll have to see if I have pictures that will help.

UMC Pamphlet


Last edited by Tim Frazier; 11/30/14 08:15 PM.
"Not all who wander are Lost"
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