One of the most recent entries to the field, and the topic of this review, is the DDM4 PDW in .300 Blackout from Daniel Defense—an American manufacturer that knows a thing or two about building ARs.

With numerous companies offering PDWs chambered for a wide range of calibers, including 5.56 NATO and 300 Blackout, the market seems more primed than ever for a massive PDW breakout from some of ...