The Best .300 Blackout Magazines

The .300 Blackout is one of the more interesting calibers in recent years, officially approved by SAAMI in 2011, and born out of a need for a specialized close-combat round for special operations units, the .300 AAC Blackout has become one of the most popular chamberings for the AR-15 platform – and for a good reason.

Offering better ballistic performance and stopping power than the standard 9mm (the most popular subsonic SMG round) in subsonic AR setups, and you can run standard 5.56 magazines with any rifle chambered in .300 Blackout as the case dimensions are close enough to function in both.

By Michael Crites

Michael Crites is el jefe around here. He has spent more than 30 years shooting, learning about guns, and collecting firearms old and new. He holds his Oregon Concealed Handgun License, and enjoys testing products in the back 40 of his farm.

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