Maxim Defense MXM50800 PDX 505-SPS | 7.62 x 39mm | 5.50″

The Maxim Defense MXM50800 PDX 505-SPS is a compact AR-style pistol built around Maxim’s SCW Pistol System, trading the profile of a stock or brace for a low-profile, snag-resistant rear unit. It ships configured for the 7.62 x 39mm chambering with a short 5.50″ barrel and a high-capacity 20 + 1 magazine. The pistol’s lightweight SCW Pistol System reduces rear weight while providing a single-point QD swivel mount for sling use. For a cost-effective optic under $1,000 that pairs well with this platform, consider a 1x prism or red-dot such as the Vortex Spitfire 1x for fast target acquisition and durable glass.

Suggested applications: compact carbine-style field use and range-focused shooting where compact dimensions and the ballistics of 7.62 x 39mm are desired.

Product Specifications

• The overall length measures 18.75 inches for a compact profile.
• The capacity is 20 + 1 for extended on-gun rounds.
• The caliber is 7.62 x 39mm as specified by the manufacturer.
• The barrel length is 5.50 inches consistent with the listed configuration.
• The action is Semi-Auto for standard AR-style operation.
• The grip material is Arid Brown Polymer to match the finish and ergonomics.
• The sights are listed as Optic Ready to accept a variety of reflex or prism optics.
• The stock material is Synthetic as part of the SCW Pistol System rear unit.
• The listed weight is 5.10 lbs providing a specific mass for handling expectations.
• The weight range is given as 5 lbs to 5.99 lbs indicating approximate mass variance.
• The barrel length range is indicated as 5″ to 5.99″ reflecting the short-barrel configuration.
• The product ships in an Arid Brown metal finish with an Arid Brown polymer grip as listed.
• The design incorporates Maxim’s SCW Pistol System at a listed weight of 5.3 ounces less than the SCW Stock in comparable configurations (as described by the manufacturer).
• The UPC is 680017508005.

Compact, mechanically straightforward, and purpose-built, the PDX 505-SPS offers a short, controllable AR pistol platform in 7.62 x 39mm that emphasizes a snag-free rear profile and utility for sling-supported shooting or range use. Its optic-ready top rail and familiar AR controls make it straightforward to set up for practical shooting or transportable field work. The combination of capacity, compact length, and the SCW Pistol System makes this a practical choice for shooters seeking a lightweight, compact platform in this cartridge.

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