Glock 23 Gen5 MOS: The Next Evolution of the .40 S&W Compact

The Glock 23 Gen5 MOS takes everything you love about the world’s most popular .40 S&W and brings it into the modern era. By integrating the Modular Optic System (MOS) with over 20 Gen5 design enhancements, Glock has created a compact powerhouse that delivers match-grade accuracy and high-speed target acquisition right out of the box.

The Gen5 MOS Advantage

1. Factory MOS-Cut Slide

The era of iron sights only is over. The G23 Gen5 MOS features a precision-machined MOS-cut slide, allowing you to mount your favorite micro red dot sights (RDS) using a simple adapter plate system. Whether it’s a Trijicon RMR, Holosun, or Leupold DeltaPoint, you’ll benefit from:

• Faster Target Transitions: Keep your focus on the target, not the front sight.

• Increased Effective Range: Pinpoint accuracy at distances where iron sights become difficult to align.

2. Enhanced Gen5 Ballistics & Accuracy

The G23 Gen5 is equipped with the Glock Marksman Barrel (GMB). Featuring improved polygonal rifling and an enhanced barrel crown, the GMB ensures tighter groups and more consistent velocities—essential for the high-pressure .40 S&W cartridge.

3. Refined Ergonomics (No Finger Grooves)

Following the feedback of professional shooters, the Gen5 frame removes the finger grooves, providing a more comfortable and universal grip. Combined with the flared magazine well, the G23 Gen5 MOS allows for lightning-fast reloads when every second counts.

G23 Gen5 MOS Technical Specifications