Agency Arms precut slides are machined from 17-4 Stainless Steel and coated in Diamond Like Carbon. These pre-cut slides will come with a Gen 3 ISMI Recoil Spring Assembly (RSA) and a channel liner installed (Gen 4 compatible models will come with an adapter for the RSA). The Gavel model is another utilitarian design featuring enhanced rear serrations, aggressive front serrations, top serrations and precut with our Agency Optic System (AOS). Specifications for Agency Arms Gavel Stripped Precut Glock 19 Pistol Slide: Manufacturer: Agency Arms Gun Make: Glock Gun Model: Glock 19 Optic Cut: Leupold DeltaPoint, Docter/Noblex, Vortex Viper, Vortex Venom, Burris Fastfire, Trijicon RMR Color: Black Finish: Diamond Like Carbon Fabric/Material: 17-4 Stainless Steel Additional Features: M3 compatible with M3 x 5mm to M3 x 10.2 MM for cover plate Included Accessories: Slide Case Features of Agency Arms Gavel Stripped Precut Glock 19 Pistol Slide Material - 17-4 Stainless Steel, Coating - Diamond Like Carbon (DLC), Optic Cut - Agency Optic System, AOS Plate - Iron Plate, Included Internals - Recoil Spring Assembly and Channel Liner Package Contents: Agency Arms Gavel Stripped Precut Glock 19 Pistol Slide Slide Case This product is compatible with the following gun models: Glock 19