NEW Glock Factory Gen 3 MOS Spare Slides HANDS-ON
This guide details the installation of a new Glock factory Gen 3 MOS spare slide onto a compatible Glock frame. It covers the transfer of essential components like the barrel and guide rod, and provides instructions for adapting the slide to work with Gen 4 and Gen 5 Glock frames using specific adapter plates. The video emphasizes the flexibility of the MOS system for optic mounting.












