Next to the original 5.56mm NATO/223, the 300 AAC Blackout (BLK for short) is the most popular chambering for the AR-15 platform, and, as a result, manufacturers now pump out a wide variety of 300 ...

This supersonic round features a 125-gr. Sierra Matchking projectile and, like the SIG Sauer 220-gr. subsonic .300 Blackout round, is designed to work optimally in today’s high-performance AR ...

SilencerCo today unveiled its new line of Harvester Subsonic 300 Blackout high performance ammunition, designed specifically for silencer-equipped firearms.

While a 10.5” barrel is generally considered to be a “short” barrel for 5.56mm, many .300 Blackout weapons have barrels as short as 5.5” while still retaining effective ballistics.

The .300 AAC Blackout was developed by Advanced Armament Corp. as a more-powerful caliber for AR-15 (M4) rifles using standard magazines without sacrificing ammo capacity.

Utilizing standard 16 inch barrel velocities, the 300 AAC Blackout reticle is designed to be calibrated with supersonic (115 gr.) ammunition: Zero the scope at 100m using the center of the ...