Product Details
When your rifle is chambered in 300 Blackout®, you need a magazine specifically built for that round. The PMAG 30 AR 300 B GEN M3 is uniquely designed for 300 BLK to deliver more consistent feeding across the wide range of projectile weights and profiles. The distinct rib and unique upper texture also provide instant visual and tactile differentiation from 5.56 magazines to reduce cross-loading. With GEN M3 materials and engineering, it pairs impact- and crush-resistant polymer with proven feeding geometry for dedicated 300 BLK performance you can trust. Made in the USA. NSN: MAG800-BLK / 1005-01-670-6834 Features Patented, modified internal geometry to allow for the large variance in projectile weights and shapes found in .300 BLK cartridges Visual and tactile external changes to differentiate the magazine from other 5.56 NATO PMAGs GEN M3 standard features Compatible with all PMAG accessories and Tactile Lock Plates Paint-pen dot matrix Removable floorplate for easy maintenance PURPOSE-BUILT MAGAZINE ONLY FOR 300 BLK Dedicated magazine for rifles chambered in 300 BLK that supports the differing geometries found in that caliber. The result is a more reliable magazine DESIGNED WITH VISUAL & TACTILE DIFFERENCES Distinct rib design and smooth upper-half texture provide visual and tactile differentiation from other PMAGs to mitigate dangerous cross-loading issues INCORPORATES THE SAME FEATURES AND PERFORMANCE OF THE GEN M3 LINE Next-generation impact and crush-resistant polymer, aggressive front and rear texture, easily removable slim floor plate, and a paint pen dot matrix
Technical Specifications
| Collection |
2026 NEW Colors |
| Caliber |
.300 AAC Blackout |
| Platform |
AR15, M4, M16 |
| Capacity |
30 rounds |
| Weight |
5 oz. |
| Length, max |
7.5 in. |
| Compatibility |
Wide compatibility with most 'STANAG 4179' platforms such as the AR15/M4, FN SCAR, IWI Tavor, and others |
Additional Resources
How to use the Magpul Dot Matrix
Compliance Notices