DuraMag Speed AR-15 30rd .300 Blackout/.223/5.56mm OD Green Aluminum Magazine

The DuraMag Speed is a 30-round detachable AR-15 rifle magazine designed to feed 5.56 NATO, .223 Remington, and .300 Blackout from a single body, so you don't have to swap mags when you change calibers. It is built around a lightweight 6061-T6 aluminum housing finished in OD Green Type III hard-coat anodizing for corrosion resistance and long-term durability.

Inside, DuraMag uses a black anti-tilt AGF self-lubricating follower and the proprietary EverFlex spring to keep rounds seated and feeding consistently in any of those cartridges, which matters when running the longer, heavier projectiles common to supersonic .300 Blackout loads or the wider pressure curve of subsonic ammunition through a suppressed barrel. The result is a magazine that runs cleanly across the supported cartridge range in semi-automatic rifles.

Designed and made in the USA, this OD Green DuraMag Speed is the right choice if you want a high-capacity AR-15 magazine that handles all three major calibers without dedicating a mag to each, and the muted finish blends naturally with rifles wearing OD Green furniture.