- The G40 Gen4 In MOS Configuration Is Chambered In 10mm Auto And Combines A Long Slide And Barrel For Improved Velocity.
- The Modular Back Strap Design And The Reversible Magazine Catch Let You Instantly Customize Its Grip To Accommodate Any Hand Size. The MOS Configuration Makes An Easy Job Of Mounting A Reflex Sight On The Pistol’s Slide Without The Need For A New Slide Or Separate Mounting System.