Maxim Defense MD9 9mm, 5.50″ Barrel, Black

About this product

Key Specifications

• The action is Semi-Auto.
• The caliber is 9mm Luger.
• The barrel measures 5.50″ for compact handling.
• The overall length is 20″.
• The unloaded weight is approximately 6 lbs.
• The stock is made from Synthetic material with a Black finish.
• The pistol is Optic Ready for electronic sights and red dots.
• Safety is provided by a Manual Thumb safety.
• The grip is a Black Polymer material.
• Equipped with a Maxim CQB Brace as specified in the product name.

The Maxim Defense MD9 (MXM48172) is an AR-9 style, semi-automatic pistol built around a 5.50″ free-floating barrel and a custom handguard that creates a monolithic-like upper receiver platform with M-Slot compatibility. It ships in a black anodized metal finish with a Maxim CQB brace and a right-hand black polymer grip, and is configured to accept optics out of the box. The combination of compact dimensions and a robust free-floating barrel provides balanced handling and accessory flexibility for range work, competition, and defensive applications.

Designed for shooters who value modularity and solid construction, the MD9’s compact profile and M-Slot handguard make it easy to outfit for a variety of roles while maintaining reliable semi-automatic function. Its feature set suits informed users seeking a practical, well-specified AR-9 style pistol platform.