Glock 40 Gen4 MOS.

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 6-inch barrel provides maximum velocity and increased terminal ballistics. 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 pistols. The 10mm cartridge is on par with the .41 Magnum and has proven to be more than capable of taking down game such as Whitetail Deer, Russian Boar and even Feral Hogs. The 10mm round offers higher velocity for greater penetration. The elongated slide increases accuracy as the site radius is increased to a full 8-inches! It also ensures that the felt recoil is thus reduced. The G40 Gen4 is configured in MOS (Modular Optic System), making it one of the most versatile GLOCKs in the line. The MOS is a specialized platform for mounting accessory optics to the slide of the pistol. The MOS gives the shooter the ability to mount the most popular reflex sights available on the market today. Reflex sight advantages include, faster target acquisition and enhanced long-range accuracy. GLOCK engineers have developed the GLOCK Modular Optic System (MOS) to simplify mounting of popular optical sights without costly custom machining of the pistol’s slide. The GLOCK MOS allows the shooter to mount the sight of their choice, easily and quickly using only a few tools.  The versatility of the system makes changing optics easy.  The shooter is not locked into one optic since switching from one sight to another is as simple as removing the old sight, removing and reinstalling the correct adapter plate, then mounting the new sight. The MOS is offered with five different plate options to comply with the specifications of some of the most trusted optic manufacturers in the industry. The advantages of optical sights mounted using the MOS are increased speed of target acquisition and target transition for faster times in competition, and improved accuracy at both long and short range. Optical sights are popular in competitive shooting and are becoming increasingly popular for concealed carry, home defense and target shooters.