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 ...

Through World War II history and cultural depictions of the Blitz, Americans know plenty about the air raids and blackout precautions ... And that’s why the ARP [Air Raid Precautions] were ...