We've installed an RMR platform on this Glock 19 Gen4 Optics Ready Slide that's been CNC-machined from stainless steel billet. The precision of these Slides & Slide Parts by Rival Arms is unmatched, and these Glock 19 Gen4 Optics Ready Slides & Slide Parts are designed to make room for the mini chamber RMR red dot sights. The design of these slides enables enhanced airflow, which cools your weapon more efficiently and gives you a clear sight picture. Each Rival Arms Faction Series Slide has marks front and rear serrations that allow you to easily move the slide into position and separate it when you need to fire. Upgrade your handgun build with a Rival Arms Faction Series Glock 19 Gen4 Optics Ready Slide & Parts. Specifications for Rival Arms Faction Series Glock 19 Gen4 Optics Ready Slide: Manufacturer: Rival Arms Gun Make: Glock Gun Model: Glock 19 Model Generation: 4 Color: Ready Red Fabric/Material: Stainless Steel Condition: New Package Contents: Rival Arms Faction Series Glock 19 Gen4 Optics Ready Slide Optics Mount Cover Plate included What firearm models does the manufacturer say Rival Arms Faction Series Glock 19 Gen4 Optics Ready Slide is compatible with? The manufacturer says that Rival Arms Faction Series Glock 19 Gen4 Optics Ready Slide is compatible with Glock 19