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 ... exactly what makes for the best 300 Blackout ammo in the ...

The lower has a steel reinforces latch point and it ships with an extended 3-oz. buffer. The finished .300 BLK takedown AR pistol build assembled. I'm fond of 20-round magazines for AR-15 pistols ...

The rifle’s “slabside” lower ... on to AR pistols and .300 Blackout, and finally … retro rifles. The SP1, the original retro, was once again relevant. In the modern AR-15 market more ...

The various components that comprise the AR ... 300 blackout rounds or .308 rounds. Alas, that will be pricier if you decide to go that route. There are six key elements to your AR-15 profile ...