From the Cammenga website:
CAMMENGA is leading the development of next-generation firearm magazines with the CAMMENGA EASYMAG series. The Model EM3-556, 30 round M16/AR-15 magazine features an open case design that allows for fast loading, unloading, and cleaning. The casing, follower, and baseplate are made of high-strength 1050 spring steel and are finished with a two-layer anti-friction coating. A large tip-proof steel follower and chrome silicon main spring provide optimal feeding performance and long lasting reliability. The CAMMENGA EASYMAG eliminates the need for a separate loading device. The EASYMAG can be loaded twice as fast as conventional magazines when using loose ammo, can also be loaded like a conventional magazine using stripper clips, and can be opened and cleaned in seconds.
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