The Glock G19 Gen5 MOS in a Black/Green package is a popular choice for Gun Enthusiasts. This Compact pistol features a Rugged Polymer frame and a Alloy slide. The MOS (Modular Optic System) allows for easy Mounting of a variety of Aiming Devices, Enhancing your Marksmanship. Standard Features include three Cylinders and a Carrying Case. The G19