Glock 40 Gen 4 M.O.S Features: 

The G40 Gen4 in the MOS Configuration is chambered in 10mm and combines a full 6-inch barrel for an improved velocity with a magazine capacity of 15 rounds. The G40 Gen4 in MOS configuration is a powerful yet easily carried pistol; perfect for the outdoorsperson, hunter and sport shooter. It is designed to give the handgun hunter the ultimate choice in semi-automatic gaming pistol and has proven to be more than capable of taking down game such as Whitetail Deer, Russian Boar and even Feral Hogs.

GLOCK 40 GEN 4 M.O.S. Specifications: 

• Glock® Gen 4 pistol equipped w/the M.O.S. (Modular Optic System) for mounting optics (such as reflex sights) to the slide without costly custom machining
• Easily & quickly mount optics using adapter plates to accommodate the following optics: EOTech, Docter, Insight, Meopta, Trijicon RMR, C-MORE, & Leupold Delta Point optics
• Use cover plate (included) when no optic is mounted
• Includes (4) adapter plates, torx wrench, adapter screws, interchangeable textured backstraps, (3) mags., steel bore brush, & black plastic case
• NOTE: Optic NOT included