The MEAN Arms ExoMag Ejector 9mm 40-Round Magazine is built to keep the fun (and firepower) going strong. Made from tough, lightweight polymer, this mag packs 40 rounds of 9mm punch into a sleek, high-capacity design that’s perfect for range days or home defense setups. It works seamlessly with standard AR-15 lowers paired with a 9mm upper and blowback BCG—no adapters, no nonsense.
A built-in ejector ensures clean cycling, while the last-round bolt-hold open feature keeps things running just the way you expect. The polymer follower feeds all your favorite 9mm loads, including hollow points, without a hiccup. Finished in classic black, the ExoMag delivers rugged reliability, smooth operation, and serious capacity—all backed by a lifetime warranty. If you’re looking to double up on rounds without doubling your reload time, this mag’s got your back.
Caliber: 9mm Luger (compatible with all types, including hollow points)
Capacity: 40 rounds
Compatibility: Standard AR-15 lowers with 9mm upper and blowback BCG
Material: Lightweight polymer body
Follower: Polymer
Color: Black
Built-in ejector
Last-round bolt-hold open feature
Smooth, reliable feeding
Durable construction for demanding conditions
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