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Posted: 10/26/2004 3:19:18 PM EST
Hello All. I jsut recently bought 3 Colt 20rnders. Two of the floorplates say the following:
"Colt AR-15"
"Cal 5.56mm"
"Colt's PT.F.A.MFG.Co.INC"
"Hartford Conn. U.S.A."
While the Other is stampled
"Cal .223"
The Mag bodies that have "Cal.5.56" are stamped with what looks to be a "U" with an "I" inside it while the mag body of the mag w/ the .233 has no stamp. Anyone have any info?
Many thanks.
Link Posted: 10/26/2004 3:21:12 PM EST
The ones stamped .223 are early Air Force issue mags from the 60's I believe.

-John
Link Posted: 10/26/2004 8:44:56 PM EST
the U I is for Universal Industries, they made them under contract for Colt
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