The Smith & Wesson G19 Gen5 MOS in a Olive Drab package is a popular choice for Tactical Professionals. This Mid-Size pistol features a Durable Synthetic frame and a Stainless Steel slide. The MOS (Modular Optic Circuit Board G19 Glock System) allows for easy Mounting of a variety of Aiming Devices, Boosting your Target Acquisition. Factory Opti