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Glock

At 3CR Tactical, we offer an extensive selection of premium Glock parts to help you enhance, maintain, and customize your Glock handgun. Whether you’re looking to upgrade performance, improve accuracy, or personalize the look of your firearm, we have the Glock parts to fit your needs.

Glock Slides

Glock slides for Gen 1-3 frames and Polymer80 builds — stripped, shop-assembled, and Build-Your-Own configurations. Inventory covers Glock 17, 19, 22, 23, 26, 43, 43X, and 48 footprints. Pick the cut and finish that matches your build; assembled slides ship ready to drop on your frame.

What to decide before you buy

  • Optic cut — full-size Glock slides (G17, G19, G22, G23, G26) are usually cut for the Trijicon RMR footprint. Subcompact slides for the Glock 43, 43X, and 48 are cut for the Shield RMSc footprint. The two are not interchangeable. Check our RMR vs RMSc vs Holosun K footprint guide before you order an optic.
  • Finish — DLC is the hardest and most corrosion-resistant. Black Nitride is the standard-duty finish at a lower price. Cerakote ships in colors (FDE, OD Green, Graphite Black). See our finish comparison for real-world wear data.
  • Generation fit — most of our slides are cut for Gen 1-3 frames. Gen 4 and Gen 5 frames use a different recoil spring assembly and trigger bar shelf. Confirm generation before ordering.
  • Stripped vs assembled — stripped slides need a barrel, recoil assembly, and a slide completion kit (firing pin, extractor, plunger, cover plate). Shop-assembled slides come built in our Florida shop with the barrel, internals, and cover plate already installed.

Optic mounting screw specs

Cover plate screws are 6-32 x 1/3". Optic mount screws are 6-32 x 7/16". We recommend the screw kit packaged with your optic — Trijicon, Holosun, and Swampfox all ship correct-length hardware sized for their footprint.

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.

Glock Slides
Glock Parts Kits

At 3CR Tactical, our Glock parts kits provide everything you need for DIY gun building, whether you’re upgrading an existing Glock or completing a custom build. From a slide and parts kit to a final assembly kit, we offer options for various models, allowing enthusiasts to configure their Glock pistols to specific preferences. With options for full-sized frames, mid-sized frames, and a range of calibers, our kits make it easy to personalize and assemble your own Glock.

Glock Parts Kits
Compensators

Pistol compensators and muzzle brakes for Glock-pattern barrels. Inventory covers 1/2x28 9mm threads (the universal Glock 9mm pitch) and 9/16x24 .40 S&W threads. Pick by caliber, thread pitch, and slide width — a Glock 19 comp will not clear a Glock 43X slide, and vice versa.

How to pick the right comp

  • Caliber and thread pitch — 9mm threaded Glock barrels use 1/2x28. .40 S&W and 10mm use 9/16x24. The thread pitch is stamped on the barrel near the muzzle. A 9mm comp will not thread onto a .40 barrel.
  • Slide width — full-size and compact 9mm comps fit Glock 17, 19, and 26 slides. Subcompact comps for the Glock 43, 43X, and 48 are narrower and will not pair with a Glock 19 slide. Do not cross platforms.
  • Comp vs brake — a compensator vents gas upward to reduce muzzle rise (flatter shooting, faster follow-up shots). A muzzle brake vents sideways to reduce felt recoil. Most pistol "comps" do both to varying degrees. Our compensator explainer covers the physics and what you can realistically expect.
  • Micro vs full-size — micro comps (like the 3CR 9mm Micro Compensator) are 1-inch or shorter and add minimal length to your slide profile. Full-size comps are 2-3 inches and produce more dramatic recoil reduction at the cost of holster compatibility.

Does a micro comp actually work?

Short answer: yes, but expect modest gains on subsonic 9mm. They shine on lighter recoiling rounds when you want flatter splits at speed. We unpack the data in this breakdown. Pair any comp with a threaded Glock barrel in matching caliber.

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.

Compensators
Barrels

Glock Barrels Upgrade your Glock 19 barrel or any other model to maximize its accuracy, precision, and reliability. Glock-compatible barrels are an inexpensive way to enhance and customize your handgun. Find the best replacement barrel for your Glock from 3CR Tactical, below.

Barrels
Pistol Optics

Pistol Optics

Are you looking for an edge when it comes to shooting your handgun? Pistol optics and sights can be a great way to improve accuracy, speed up target acquisition, and extend the range of your weapon.

Pistol Optics
Pistol Sights

Iron or manual sights for pistol applications

Pistol Sights
Misc Parts

Miscellaneous parts for the Glock and/or Polymer80 pistol platforms

Misc Parts
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