Maxim Defense PDX-SD MXM49701 | 5.50″ 5.56 Pistol

The Maxim Defense PDX-SD (MXM49701) is an AR-style pistol built around the SCW series platform in a hard anodized black finish. It is chambered for .223 Rem/5.56 NATO and features a compact 5.50-inch barrel with a 1/2"x28 thread pattern suited for muzzle devices or suppressors that match that thread. A robust SCW-style stabilizing brace is paired to the pistol, providing a compact, maneuverable package for range use and competition applications such as pistol-caliber stages or AR pistol-specific matches. For optics, a red-dot like the Aimpoint PRO pairs well with this platform and remains under $1000 while offering robust, repeatable sighting for fast target acquisition.

Product Specifications

• The manufacturer is Maxim Defense Industries.
• The model is PDX-SD.
• The manufacturer’s part number is MXM49701.
• The caliber is listed as .223 REM/5.56 NATO.
• The barrel measures 5.50 inches.
• The thread pattern is 1/2"x28.
• The color is Black.
• The finish is Hard Anodized.
• The series is SCW.
• The platform/category is AR Pistol.
• The product includes a SCW brace configuration.
• The UPC is 680017497019.

This PDX-SD configuration emphasizes compact handling and modular compatibility. Its short barrel and 1/2″x28 threading make it adaptable for a range of muzzle devices and suppressors that use that thread, while the SCW brace gives a stable, repeatable cheek weld for precision on the move. Well-suited to disciplined range practice and action-style pistol competition, the platform balances portability with performance in an AR-format package.

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