This is the genuine 57 Center AR57 magazine. The magazine is molded from polymer in a translucent smoke color. It is 10¾” (27.3cm) long and weighs 4.8 oz. (136g). The AR57 magazine is intended for the AR57 upper. It holds 50 5.7X28mm cartridges. The AR57 AR upper is a light recoiling, high capacity, blowback operated upper with a monolithic Picatinny quad rail.
Check the price of the 57 Center AR57 magazine at Brownells, a name you can trust.
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