Brownells 75th Anniversary - A Shooting Heritage

A Concealable Magazine Designed for the 300 Blackout Round

Magpul took inspiration from its PMAG 30 AR 300 B design, which was built specifically to give you a clearly labeled magazine designed to function perfectly with 300 Blackout rounds. The new PMAG 20 AR 300 B design incorporates all of Magpul's GEN 3 upgrades, and it gives you a more compact magazine that works well with your small rifle-caliber platforms.

In addition to its smaller size, the Magpul PMAG 20 AR 300 B design gives you a safer way to shoot. Since the 300 Blackout functions in 5.56 NATO magazines and vice-versa, the risk of chambering a 300 Blackout round in your 5.56 NATO rifle is higher, and that can lead to a catastrophic malfunction. This PMAG has been designed with a distinct look and feel that allows you to tell the difference both by sight and feel to avoid sticking the wrong magazine into your gun.

Each Magpul PMAG 20 AR 300 B design is made from Magpul's durable, rugged polymer and features an easy-to-remove baseplate for cleaning. You'll also get a dot matrix for organization, as well as a dust cover that also protects your feed lips from impacts. Like all of Magpul's products, this magazine is made right here in the USA.


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Cartridge: 300 AAC Blackout

Capacity: 20-Round

Quantity: 1

Finish: Black

Material: Polymer