The Maxim Defense PDX 505-SPS is a high-performance 5.56x45mm NATO pistol designed for superior maneuverability without sacrificing power. Featuring a compact 5.5″ barrel, this ultra-short firearm is ideal for close-quarters combat (CQC), home defense, and tactical applications. The Urban Gray finish paired with a black M-Lok handguard ensures a sleek, modern look while providing enhanced grip and accessory mounting options. Built with Maxim Defense’s patented short-stroke piston system, the PDX 505-SPS delivers exceptional reliability, reduced recoil, and smoother cycling compared to direct impingement systems. The SB Tactical stabilizing brace (included) offers improved control and stability, making it easy to handle