300 Blackout is one of the newest rounds on the commercial market. The 300 Blackout round was designed by suppressor company AAC and was intended for AR 15 platforms. The 300 Blackout round was designed to reach max velocity from a barrel as short as 9 inches, making it possible to produce short and effective rifles chambered in the cartridge. Additionally, the 300 Blackout could utilize both supersonic and subsonic rounds reliably. 300 Blackout ammo can weigh anywhere from 123 grains to 220 grains.
The subsonic rounds are perfect for shooters running a suppressor who want a silent and reliable semi-automatic rifle. Additionally, 300 Blackout ammunition utilizes 223 Remington cases as its parent case. The overall length of the rounds is identical to standard 223/556 ammunition and this allows AR owners the ability to convert their rifles with minimal changes. In fact, 300 Blackout is compatible with 5.56 magazines, BCGs, upper and lower receivers, buffers assemblies and more. The most notable difference between a 300 Blackout and 223 5.56 AR is going to be the barrel and gas system.
The 300 Blackout as a round has proven to be popular enough to find itself in a wide variety of rifles, including bolt actions and single shots. If you are looking to take the dive into the exciting world of 300 Blackout ammo, check our selection of both subsonic and supersonic ammunition. We have cheap 300 Blackout ammo for sale by the box and in bulk.