Drops onto factory Glock 26 Gen 3 subcompact frames and Polymer80 PF940SC builds with no fitting required. Pair with a Glock 26 Gen 3 completion kit and a 9mm subcompact barrel for a finished assembly. The slide is machined from 416 stainless. Choose Black DLC for a hard, glare-free wear surface or FDE PVD (Flat Dark Earth) above. The Trijicon RMR footprint is cut directly into the slide and ships with a cover plate installed, so it runs iron-sight-only until you mount an optic. Features: RMR-pattern optic cut with cover plate Front and rear cocking serrations Factory iron sight dovetails, front and rear Black DLC or FDE PVD finish over 416 stainless Drop-in fit on Glock 26 Gen 3 OEM and PF940SC frames What you'll need to supply: a Glock 26 Gen 3 slide completion kit, a 9mm subcompact barrel and sights. Use a Gen 3-spec recoil spring assembly; Gen 4/5 recoil assemblies use different geometry. Confirm your red dot uses the RMR footprint before purchase (Trijicon RMR, Holosun 407C/507C, SRO and similar). RMSc and DeltaPoint Pro optics will not fit this cut. Run 100-200 rounds for break-in to settle the recoil spring and barrel link. See our slide break-in guide for the full procedure. Optic & cover-plate hardware: RMR footprint. Screw specs for reference: cover plate 6-32 x 1/3, optic 6-32 x 7/16. DISCLAIMER: "GLOCK" is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither 3CR Tactical nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of "GLOCK" on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.