Maxim Defense MD9 MXM48174 9mm 5.50-inch Barrel Urban Grey

The Maxim Defense MD9 (MXM48174) is an AR-9 style pistol configured for 9mm Luger with a 5.50-inch barrel and Urban Grey anodized metal finish. The design incorporates a free-floating barrel and a custom handguard to provide a monolithic-like upper receiver platform with M-Slot compatibility. It ships with a Black Maxim CQB brace and a polymer grip in a right-hand configuration.

Key Specifications

• The firearm is chambered in 9mm.
• The barrel measures 5.50-inch.
• The overall length is 20 inches.
• The weight is 6 lbs.
• The action is Semi-Auto.
• The sights are Optic Ready.
• The safety is a Manual Thumb.
• The metal finish is Urban Grey Anodized Metal Finish.
• The configuration includes a Black Maxim CQB Brace.
• The grip material is Black Polymer.

Engineered for compact AR-9 performance, the MD9 combines a free-floating barrel and M-Slot-compatible handguard with an optic-ready platform and a CQB brace for close-quarters utility and accessory flexibility. Its compact footprint and familiar AR controls make it suitable for users seeking a high-quality 9mm AR-style pistol for sport shooting, training, and other lawful applications where a compact, reliable platform is preferred.

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