Buy the Maxim Defense PDX Pistol from BattleHawk Armory today! Born from the SOCOM PDW solicitation, the NEW Maxim Defense PDX is designed to handle the fierce demands of the Tier 1 community. The PDX dominates close-quarter encounters and achieves maximum energy on target. At just 18.75" in overall length, the PDX delivers groundbreaking power and performance in a subcompact platform. The Maxim Defense PDX delivers great performance in a lightweight, compact, and durable pistol platform. It comes chambered in .300 Blackout with a 5.5 inch barrel. Features include an optics ready flat-top, an SCW brace, and a 20 round magazine.