The Glock G19 Gen5 MOS in a Black/Green package is a popular choice for Tactical Professionals. This Compact pistol features a Reliable Polymer frame and a Stainless Steel slide. The MOS (Modular Optic System) allows for easy Attachment of a variety of Red Dot Sights, Enhancing your Marksmanship. Factory Options include three Cylinders and a Hols