GLOCK, Inc.'s new Modular Optic System (MOS) was designed by GLOCK engineers to enable users to mount their preferred reflex sights to their pistol in order to improve their target acquisition. The ...

The G45 Modular Optic System (MOS) incorporates the popular “Crossover” design with a factory-milled slide, making it modular-optic-ready and combines the compact-size slide with the full-size frame.

LAS VEGAS -- Highlighting the trend of consumers increasing opting for optics, Austrian gun-maker Glock has rolled out a modular optic system for many of its popular pistols. The company is ...

** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** Glock announced the addition of ...

** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** In 2019, the United States Customs ...

Glock's new Modular Optic System is the company's factory mounting system for mini red dot sights. The first pistols to have this option are Glock's long-slide variant pistols in 9mm, 40 S&W, .45 ACP ...