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242 Posts

http://www.surefire.com/HighCapacityMagazines
Saw Magpul was working on this awhile back and was getting a patent. Not sure but I think I smell lawsuit!
http://www.defensereview.com/magpul-files-patent-application-for-quad-stack-magazine-4179-stanag-enhanced-capacity-ar-ar-15-mag/
