Maxim Defense Pdx Pstl 7.62x39 5.5" 20-Round Pistol

The Maxim Defense PDX Pistol 7.62x39 5.5" 20-round semi-automatic pistol represents a modern interpretation of the short-stroke piston platform engineered for law enforcement and military end-users seeking a compact, feature-rich package in an intermediate cartridge. This firearm bridges the performance gap between traditional handguns and rifle-caliber carbines, delivering rifle ballistics in a chassis optimized for CQB environments, vehicle operations, and specialized tactical deployments. Built on proven operating principles, the PDX serves professionals who demand reliable performance in 7.62x39—a cartridge known for its mild recoil impulse, wide ammunition availability, and proven combat efficacy.

The 5.5-inch barrel length delivers optimal velocity while maintaining a total package dimension of 12 inches—critical for shooters operating in confined spaces or from vehicles. The piston-driven system reduces carrier tilt and extends component life compared to direct-impingement designs, while the integrated muzzle device manages recoil energy and mitigates muzzle signature. At 8.75 pounds fully assembled, the PDX maintains balance and controllability; the 20-round magazine capacity extends engagement duration without frequent reloading, a consideration in high-stress operational scenarios. The flat-top receiver accommodates standard optic mounts, enabling rapid target acquisition and increasing effective range beyond iron sight limitations.

This platform suits armored personnel, breach teams, and tactical units prioritizing reliability in 7.62x39 platforms without sacrificing ergonomics or modularity. Field stripping mirrors standard AR-platform procedures, reducing training overhead for cross-trained personnel. The PDX's compact footprint and piston reliability make it ideal for mounted operations, close-quarters work, and environments where intermediate-cartridge performance is non-negotiable. Operators should verify local and state firearm regulations before purchase, as classification and legal status vary by jurisdiction.