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300 AAC Blackout Ammo

8 products in stock

Developed by Advanced Armament Corporation to give an AR-15 more bullet weight while still using standard 5.56 magazines, the 300 AAC Blackout (300 BLK) has two personalities: supersonic loads in the 120 to 150 grain range, and heavy 200 and 220 grain bullets usually loaded subsonic.

Listings include Magtech and Sellier & Bellot 200 grain FMJ, Wolf Polyformance steel case 145 grain, Remington UMC 150 grain, Federal American Eagle 220 grain subsonic jacketed hollow point, Winchester Super Suppressed open tip and a G9 Defense hollow point, in boxes and bulk packs.

Showing 8 of 8 products

Frequently Asked Questions

Can I shoot 5.56 ammo in a 300 BLK rifle?

Never. A 5.56 round can physically chamber in a 300 BLK barrel but is the wrong cartridge and can be dangerous. Always check the caliber on the barrel.

What does subsonic mean?

A subsonic bullet leaves the muzzle below the speed of sound, which avoids the supersonic crack.

Is 300 BLK the same as 7.62x35mm?

Yes. 300 AAC Blackout, 300 BLK and 7.62x35mm all describe the same cartridge.