Maxim Defense PDX Pistol 7.62×39 | 5.5in | 20rd

The Maxim Defense PDX is a compact 7.62×39 AR-style pistol built for short-length use where maneuverability matters. It features a 5.5-inch threaded barrel, Maxim’s SCW 4″ brace system with an integrated bolt carrier group and interchangeable buffer weights for improved recoil control, and an installed HATEBRAKE muzzle booster beneath the handguard. For an optic under $1,000 that complements the PDX’s short sight radius, consider a low-power variable or a compact red-dot such as the Vortex Strike Eagle 1-6×24 or a robust 1×20–30mm red-dot for rapid target acquisition.

Applications include controlled close-quarters training and short-range vehicle/utility use, as well as general range practice where compact handling and quick follow-up shots are priorities.

Product Specifications

• The model is PDX.
• The manufacturer is Maxim Defense Industries.
• The caliber is 7.62 x 39mm.
• The barrel length is 5.5 inches.
• The barrel is threaded.
• The magazine capacity is 20 rounds.
• The action is semi-automatic.
• The firearm uses the SCW 4-inch brace system with an integrated bolt carrier group and interchangeable buffer weights.
• Includes the HATEBRAKE muzzle booster installed under the handguard.
• The receiver and handguard materials are aluminum.
• The finish is anodized black.
• The handguard features M-LOK attachment slots.
• Operates with a manual safety.
• The overall length measures approximately 18.75 inches.
• The UPC is 680017478018.

The PDX is a purpose-driven compact AR pistol that balances short overall length with features intended to manage recoil and support rapid follow-ups. Its SCW brace system and HATEBRAKE design emphasize controllability in a compact package, while the threaded barrel and M-LOK handguard provide accessory flexibility. If you need a maneuverable 7.62×39 AR pistol for range-focused training or confined-space tasks where a shorter profile is advantageous, the PDX offers a practical mix of components and ergonomics without unnecessary complexity.