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Posted: 10/21/2009 4:22:42 PM EDT
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6 Cooper 30 rd. w/1989 stamped baseplate(one still sealed in plastic), and 6 Adventure Line of the same era, most showing no use. 1 colt .223 marked 20rd., w/ alloy follower, and these 2 pouches.
90 bucks. 
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Quoted:
Quoted:
Coopers are well known for their fit/function issues. Make sure you check them out real well. Olycar15 What was out of tolerance on the bad ones? Bad welds making the body out of spec comes to mind first off. Just do the normal fit and bench testing before you try to use them at the range. I'm not saying yours are bad just make sure you properly test them. I think they lost their contract because they sent a large quantities of mags out that wouldn't even fit properly. Maybe someone will come along with some more detailed info. ETA- I just read the mag FAQ and it says that if they are the black follower versions they might be of the bad lots. If they are green followers they were made around 2002 and after and therefore should be good. Olycar15 |
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http://magfaq.tripod.com/mags1.htm#2w
2-2-6] Cooper Industries
––––––- Cooper Industries is well-known as the only M16 mag contractor to lose its contract. There had been reports of problems with Cooper mags in the field, and an investigation uncovered that Cooper had mixed "reject" mags in with those that passed inspection. Some Cooper mags were found to have only 3 spot-welds per seam, instead of the usual 6-7. Others were oversize and wouldn't fit into mag wells, or had the mag halves welded together unevenly, causing feed problems. Although the majority of Cooper mags were fully in spec, the US Army recalled all Cooper mags. Always examine any Cooper mag for fit and welds before buying, preferably in your own lower. Because of the stigma surrounding Cooper mags, you can often find them at bargain prices. As long as you know what to look for, they can actually be a bargin. Made from mid 1970s-mid 1980s. Floorplates stamped: COOPER INDUSTRIES UPLAND, CA (r) 786 MFG. CODE 030389 ETA: "30389" is their CAGE code, not the date of mfg. |
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Quoted:
http://magfaq.tripod.com/mags1.htm#2w 2-2-6] Cooper Industries
––––––- Cooper Industries is well-known as the only M16 mag contractor to lose its contract. There had been reports of problems with Cooper mags in the field, and an investigation uncovered that Cooper had mixed "reject" mags in with those that passed inspection. Some Cooper mags were found to have only 3 spot-welds per seam, instead of the usual 6-7. Others were oversize and wouldn't fit into mag wells, or had the mag halves welded together unevenly, causing feed problems. Although the majority of Cooper mags were fully in spec, the US Army recalled all Cooper mags. Always examine any Cooper mag for fit and welds before buying, preferably in your own lower. Because of the stigma surrounding Cooper mags, you can often find them at bargain prices. As long as you know what to look for, they can actually be a bargin. Made from mid 1970s-mid 1980s. Floorplates stamped: COOPER INDUSTRIES UPLAND, CA (r) 786 MFG. CODE 030389 ETA: "30389" is their CAGE code, not the date of mfg. Great information, thanks. Mine fit good and have the appropriate welds. |
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I bought one magazine with a Cooper floorplate at a gun store in the early 90's before I heard about the issues and it's been totally reliable through many hundreds of rounds.
However, the body has a gray Teflon finish. I think someone switched the floor plate before I bought it and it's actually a Labelle magazine body. |
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