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Magpul PMAG AR-15 300 B Gen M3 30 Rounds Black


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Magpul Magazines Are the Industry Standard

The Magpul PMAG 30 Round Magazine designed specifically for the .300 AAC Blackout Cartridge. The genesis of the blackout cartridge was to provide special operations units a .30 caliber compatible round that functions under the constraints of the existing AR pattern dimensions and the .300 AAC blackout cartridge was born. The ability to shoot both subsonic and super sonic cartridges with a suppressor further pushed the envelope and it was found that some of the larger grain weight projectiles, occasionally had reliability issue. In step Magpul with a quick solution and optimized magazine for the platform. This magazine allows you full compatibility with all of the various .300 AAC Blackout cartridges and with the visual differences in the magazines you can quickly identify your different magazines avoiding any potential disasters. Magpul PMAG's have become the industry standard.

Magpul PMAG AR-15 300 B Gen M3 .300 AAC Blackout Magazine (Black) Specifications and Features:

  • Magpul MAG800-BLK
  • AR-15 .300 AAC Blackout Magazine Gen M3
  • .300 AAC Blackout
  • 30 Rounds
  • Purpose Built Magazine Only for .300 BLK
  • Designed With Visual and Tactical Differences
  • Incorporates The Same Features And Performance Of the Gen M3 Line
  • Constant-Curve Geometry
  • Long Life Stainless Steel Spring
  • Ribbed Gripping Surface
  • Aggressive Front/Rear Texture
  • Paint Pen Dot Matrix Panel on Lower Label
  • Made in the USA
  • Matte Black


  • AR-15 / M4 / M16 and Similar Pattern Clone Rifles Chambered in .300 AAC Blackout