MAGPUL PMAG M3 300BLK 30RD BLK

The PMAG 30 AR 300 B GEN M3 is a purpose-designed magazine for rifles chambered in 300 Blackout. Since its inception, 300 Blackout shooters have had to use a magazine designed for another cartridge, limiting its ultimate performance and compatibility. One of the nice features of 300 Blackout is the compatibility with 5.56x45mm parts, but with the magazine it is a compromise to do so. Due to the wide variety of projectile weights and profiles potentially decreasing overall reliability, a dedicated 300 Blackout magazine was a logical step for the PMAG line. In addition to the performance gained by a dedicated mag, the PMAG 30 AR 300 B also offers a safer way to feed your 300 Blackout rifle. When using 5.56x45mm mags, the potential to chamber and fire a 300 Blackout round in a 5.56x45mm rifle with catastrophic results requires diligent ammunition management by the shooter. The PMAG 30 AR 300 B’s distinct rib design and smoother upper-half texture provides the shooter a distinct visual and tactile difference from any other PMAG to mitigate dangerous cross-loading issues.

Why Choose PMA Customs?

• Curated Parts: Every component in a PMA firearm undergoes rigorous inspection and testing. With over a decade of experience, we meticulously select and integrate only quality parts, ensuring unparalleled reliability when it matters most.
• Quality Without Markup: We leverage our manufacturing capabilities and reputable sourcing to deliver exceptional firearms without unnecessary markups. Each product is hand-assembled with stringent quality checks at every stage, guaranteeing superior craftsmanship.
• American Made & Veteran Owned: As a Veteran Owned and Operated business, all PMA Customs firearms are proudly built and assembled in our Georgia facility, utilizing components made here in the USA.

Warranty: All Pickett’s Mill Armory firearms, assemblies, and components are backed by our limited lifetime manufacturer’s warranty!