Perhaps generating the biggest buzz at the Glock booth was the new MOS or Modular Optic System pistols. The fairly recent trend of mounting miniature reflex optics to pistols has prompted Glock to offer their own optic-ready slides for various Glock pistol models.
Seen above is the Glock 34 MOS. The 34 is a long slide 9x19mm Glock, which has seen use in many competitive shooting events, making it a perfect fit for the new MOS line. The slides come standard with a removable cover plate, for use without an optic, as well as the necessary Torx wrench and screws. The MOS also comes with four adapter plates to accommodate most popular optic models.
Currently, the G34 Gen4, G35 Gen4, G41 Gen4, and G40 Gen4 are the four models slated to come out in the MOS configuration, although if the MOS line turns out to be popular enough it’s likely Glock would expand the MOS slides to other models. We were also told that currently the MOS has to be purchased as a complete pistol and the slides will not be sold separately. They are set to ship shortly after the completion of SHOT Show.