Fits Gen 3-4 Glock 26 compatible frames. This Remsport bullnose upper drops straight onto your lower - no gunsmithing, no tuning. The Gen 5-style bullnose front contour updates the profile of your Glock 26 and smooths re-holstering. The slide is matte black nitride for corrosion resistance. Choose the barrel above: a crown/flush-cut black nitride barrel to match the slide, a crown/flush-cut plated stainless steel barrel for a bright contrast against the black slide, or a threaded 1/2x28 barrel with a thread protector installed. Features: Remsport iron sight-cut bullnose slide, black nitride finished 9mm drop-in barrel (choose above) - crown/flush-cut black nitride, crown/flush-cut plated stainless steel, or threaded 1/2x28 with a thread protector installed; chambered in 9mm Luger Threaded option: 1/2x28 threads accept a compensator, muzzle device or thread protector 3CR Tactical slide completion kit installed - firing pin, extractor, recoil rod, all internals Standard-height polymer sights installed and aligned Fully assembled and function-tested in our Florida shop Break in with 200 rounds of 124-grain or heavier 9mm before running lighter loads. Confirm your lower is a Gen 3-4 Glock 26 pattern and cycle the action by hand to check full lockup before live fire. STATE RESTRICTION NOTICE - THREADED-BARREL OPTION The threaded-barrel option may be regulated as an "assault weapon" feature or component (e.g., threaded barrel, muzzle device/compensator, or assembled upper) and may be restricted or prohibited in CA, CT, DC, HI, IL, MA, MD, NJ, NY, RI, VA, WA, and select municipalities. It is the buyer's responsibility to verify local, state, and federal laws before purchase. Orders that cannot ship to a restricted address will be canceled and refunded. 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.