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Posted: 5/23/2005 8:25:11 AM EDT
On the front part of the mag (bullet tip end) just above the rivit on the bottem is a marking that looks like a "I" inserted in a "U". I have never noticed these marking before untill today. Any body have a clue to what this marking means? Also I have other colt 20 rnd mags that do not have this mark. Thanks

Link Posted: 5/23/2005 8:39:56 AM EDT
From the MAG FAQ found in the AR-15 MAGAZINE forum (hint - hint)

All Colt-marked magazines were actually made by a sub contracter, Universal Industries, a division of Okay Industries. GI-Contract Colt 20s had alloy followers and are marked with a "UI" stamp (for Universal Industries) on the front narrow wall of the magazine. Tilted on it's side, the "UI" becomes a "CH" (Colt, Hartford). The US Military switched to 30-round magazines in the early 1970s, and Colt-marked 20s made after the switch had black plastic followers. Anodizing is generally gray or silver in color.
Link Posted: 5/23/2005 8:48:53 AM EDT
[Last Edit: 5/23/2005 8:52:37 AM EDT by TOW2B]
Gotya, I forgot about the mag section. Thanks
and yes I feel stupid.

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