Founder Keven Brittingham and his original company, Advanced Armament Corporation (AAC), are responsible for the 300 ... suppressor. It's available from Q as well. For those familiar with the AR ...

Although AR-15-compatible cartridges have a maximum ... harder to ignite CCI 450 primers with the minimally shouldered 300 Blackout and 300 HAMR cartridges. Of course, some folks don’t cycle ...