The ** PMAG 30 AR 300 B GEN M3 – Olive Drab Green (ODG)** is a purpose-built 30-round magazine engineered specifically for rifles chambered in .300 AAC Blackout. Unlike standard AR-15 magazines originally designed for 5.56 NATO, this magazine features optimized internal geometry that reliably feeds the wide range of bullet weights and profiles commonly used in .300 BLK ammunition.

Built using Magpul’s next-generation impact- and crush-resistant polymer, the GEN M3 platform delivers exceptional durability in harsh conditions while remaining lightweight and easy to handle. The magazine incorporates aggressive front and rear texturing for positive grip, a paint-pen dot matrix for identification, and a slim, removable floorplate for easy maintenance.

A distinctive external rib pattern and texture differentiate the PMAG 30 AR 300 B from standard 5.56 PMAGs, helping shooters quickly identify the correct magazine and reduce the risk of dangerous cross-loading between .300 BLK and 5.56 rifles.

The magazine maintains broad compatibility with STANAG-pattern AR-15 platforms, including many AR-15/M4 rifles as well as platforms such as the FN SCAR-16 and IWI Tavor that accept AR-pattern magazines.

Finished in Olive Drab Green, this durable polymer magazine is ideal for range use, duty setups, or color-matched rifle builds.