The Maxim Defense PDX 505-SPS is a high-performance, ultra-compact rifle chambered in .300 Blackout, designed for superior maneuverability without sacrificing power. Featuring a 5.5-inch barrel, this PDX model delivers optimal ballistic performance with subsonic or supersonic ammunition, making it ideal for home defense, tactical operations, or suppressed shooting. Built for precision and durability, the PDX 505-SPS comes with a sleek black finish and a lightweight M-Lok handguard, allowing for easy accessory mounting (lights, grips, lasers) while maintaining a slim profile. The patented Maxim CQB stock ensures a compact footprint without compromising stability, offering a smooth shooting experience even in close-quarters