Magpul PMAG GEN M3 AR 300 AAC Blackout 30 Round Polymer Black

(1 customer review)


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. The performance gained by a dedicated mag, the PMAG 30 AR 300 B 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. Along with optimized 300 Blackout performance, the PMAG 30 AR 300 B brings along all of the GEN M3 features such as crush resistant polymer, aggressive front and rear texture, an easily removable slim floor plate, a paint pen dot matrix for marking and identification and a dust/impact cover.

50 in stock

SKU: 840815117223 Category:


Caliber 300 BO
Capacity 30
Finish Black
Model PMAG
Material Polymer
Model Fit AR
Capacity 30



Additional information

Weight 0.35 lbs

1 review for Magpul PMAG GEN M3 AR 300 AAC Blackout 30 Round Polymer Black

  1. Reynald (verified owner)

    Verified reviewVerified review - view originalExternal link

    Fits well on my .300 BLK ammo.

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