This kit includes a stylish Stiffler Manufacturing RMR slide with diamond grips and an RMR optic footprint, 3CR Tactical Slide Completion Kit and 9mm Nitride Standard Barrel for Glock 19. Compatible with Glock 19/23 Gen 1-3 frames, as well as 3rd party frames (Combat Armory, PSA, SCT etc) that are compatible with Gen 3 slides. This kit includes the following components and will require assembly. Machined from heat-treated 17-4 PH stainless bar stock - tougher than the 416 stainless commonly used for pistol slides Stiffler Manufacturing Diamond Grip RMR DLC Slide for Glock 19 3CR Tactical Slide Completion Kit 9mm Nitride Standard Barrel For additional customization options, please see the Build-Your-Own Complete Slide for Glock 19 . 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.