Maxim Defense MXM50840 PDX 505-SPS | 7.62x39mm | 5.50in

The Maxim Defense MXM50840 PDX 505-SPS is a compact AR-style pistol built around Maxim’s SCW Pistol System and chambered in 7.62x39mm. It features a 5.50-inch barrel and a streamlined rear SCW Pistol System designed to reduce bulk and snag points while keeping a single-point QD sling mount. For optics, a compact pistol red dot such as the Holosun 507K X2 pairs well for fast target acquisition without exceeding a $1,000 budget. Typical applications include dedicated range training and short-range field/utility use where a compact, robust platform is desirable.

Product Specifications

• The manufacturer is Maxim Defense Industries.
• The model/part number is MXM50840 PDX 505-SPS.
• The caliber is 7.62 x 39mm.
• The action is Semi-Auto.
• The barrel measures 5.50″ for compact handling.
• The barrel length range is 5 to 5.99″.
• The capacity is 20 + 1.
• The overall length is 18.75″.
• The weight is 5.10 lbs.
• The weight range is 5 lbs to 5.99 lbs.
• The stock material is Synthetic.
• The grip material is Urban Grey Polymer.
• The finish is Urban Grey metal.
• The sights are Optic Ready.
• The UPC is 680017508401.

The PDX 505-SPS brings Maxim’s SCW Pistol System to a compact 7.62x39mm platform for shooters who want a minimal, snag-free rear profile and a robust chambering in a short overall package. Its combination of a streamlined rear interface, optic-ready top rail, and pistol-length balance makes it well suited for deliberate range work and utility tasks where a compact, maneuverable AR-style pistol is preferred.