Maxim Defense PDX Pistol 5.56 NATO 5.5in 20rd Gray

The Maxim Defense PDX is an AR-style pistol built around the SCW (Short Compact Weapon) system and an integrated bolt carrier group with interchangeable buffer weights. It is chambered in .223 REM/5.56 NATO and features a 5.5-inch threaded barrel for modularity with muzzle devices. Designed for compact, close-quarters and personal defense roles, the PDX pairs a pistol brace with M-LOK-compatible interfaces for accessory mounting.

Key Specifications

• The firearm is chambered in .223 REM/5.56 NATO.
• The barrel measures 5.5 inches and is threaded.
• The barrel type is Threaded.
• The magazine capacity is 20 rounds.
• The action is Semi-Auto.
• It ships configured with a Pistol Brace as the stock type.
• The exterior finish is Anodized.
• The color is listed as Gray.
• Included or listed accessory: HATEBRAKE.
• Handguard/attachment interface is M-LOK.

Compact, configurable, and engineered for users who prioritize a short, adaptable platform, the PDX delivers practical handling and modularity in a small footprint suitable for close-quarters and personal-defense use. Its SCW system and interchangeable buffer weights offer a flexible setup for a range of mission profiles and accessory configurations.

Related Videos: