The Ruger RXM is a semi-automatic pistol chambered in 9mm Luger with a 4-inch barrel. It has an optics-ready slide, a tritium front co-witness height sight, and a Magpul EHG Black frame. The pistol ships with two Magpul PMAG GL19 magazines for a 15+1 capacity. 
 

Key Specifications 

• Brand: Ruger 
• Model: RXM 
• Caliber: 9mm 
• Action: Semi Auto 
• Capacity: 15+1 
• Barrel Length: 4 in 
• Color/Finish: Black 
   

Detailed Features 

• 4-inch barrel in a more compact RXM configuration 
• Optics-ready slide cut for direct red dot mounting 
• Tritium front sight at co-witness height 
• Magpul EHG Black polymer frame 
• Includes two Magpul PMAG GL19 magazines

Owners of the 4-inch RXM compare it favorably to the longer-barrel variant for carry-oriented use, noting the shorter profile makes it easier to conceal without giving up much of the sight radius people care about for general shooting. The tritium front sight at co-witness height is a frequently mentioned practical feature for low-light environments.

The Magpul EHG frame gets the same generally positive ergonomic feedback as on other RXM variants. Shooters appreciate the grip texture and the included GL19-footprint magazines, which are widely available. A few owners with very large hands find the grip slightly short and prefer the higher-capacity 17+1 model for range use.

The RXM trigger remains the dividing point for this model as it is for the rest of the line. Owners who accept a standard striker-fired pull find it adequate; those comparing it to premium pistols in the same price bracket consider aftermarket trigger work a priority upgrade. The optics-ready platform and included quality magazines soften the value criticism for most buyers.