Enhanced Slide With Integral Red Dot Mounting Slot + Ergonomic/Performance Upgrades Our RMR Slide for GlockA(R) 17 Gen3 pistols is just the ticket to upgrade for your factory G17 or the perfect enhanced slide for a brand-new custom gun built on a compatible frame from another manufacturer. This slide features a pre-cut slot for easy, secure, low-profile mounting of a reflex red dot sight that fits the Trijicon RMR footprint. If you're not mounting a red dot at the moment, we've included a lightweight polymer cover plate to neatly fill the slot. Our RMR Slide comes with standard-height front and rear sights, which can serve as your primaries or as backup "iron" sigh Mfg: Brownells