This stripped slide fits Glock 19 Gen 3 frames and matches Gen 3 internal dimensions - drop a Glock 19 Gen 3 barrel and slide completion kit into it and you have a complete upper ready to mate with your lower. Manufactured by Matrix Arms in New Hampshire from heat-treated stainless steel, and offered in two finishes: Black DLC (diamond-like coating) for surface hardness and a deep matte-black look, or a color-shifting Chameleon finish that shifts hues as the light moves across it. Choose your finish from the Color option above. The slide is cut for the Trijicon RMR optic footprint directly - no plate, no adapter - and ships with diagonal front and rear serrations for press checks and slide manipulation. Sold as a stripped slide: no internals, no barrel, no cover plate. Pair it with a 3CR Tactical Slide Completion Kit (firing pin, extractor, plunger, cover plate, recoil rod) and a Glock 19 Gen 3 barrel of your choice to finish the upper. Fits: Glock 19 Gen 3 frames and Gen 3 components Material: heat-treated stainless steel Finish options: Black DLC (matte black) or Chameleon (color-shifting iridescent) Optic cut: Trijicon RMR footprint Serrations: front and rear diagonal Optic mounting screws: 6-32 x 7/16" - recommend the optic manufacturer's screw kit Cover plate screws: 6-32 x 1/3" Configuration: stripped - no internals, no barrel, no cover plate Lightly oil the rails before assembly and verify your Glock 19 Gen 3 lower, barrel, completion kit, and optic footprint before installation. Run 50-100 rounds after the build to settle the slide and barrel before relying on the upper for carry or duty. DISCLAIMER: GLOCK is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. or GLOCK Ges.m.b.H. Neither 3CR Tactical nor this site are affiliated with, or endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of "GLOCK" on this page is merely to advertise the sale of aftermarket GLOCK pistol components. For genuine GLOCK, Inc. products, visit www.glock.com.