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GLOCK® Parts

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    GLOCK® 21 Compatible Stainless Steel Barrel 4 GLOCK® 21 Compatible Stainless Steel Barrel 5 GLOCK® 21 Compatible Stainless Steel Barrel 6 GLOCK® 21 Compatible Stainless Steel Barrel GLOCK® 21 Compatible Stainless Steel Barrel 2

    GLOCK® 21 Compatible Stainless Steel Barrel

    Factory Gen 3 and Polymer80 Compatible. Full stainless. This GLOCK® 21-compatible stainless barrel provides high accuracy and good looks at a great price. With a fully polished finish, this barrel's more resistant to corrosion and easier to clean,...

    Was: $99.99
    Now: $89.97
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    Complete RMR Slide Assembly for Glock® 19 Complete RMR Slide Assembly for Glock® 19 Complete RMR Slide Assembly for Glock® 19 Complete RMR Slide Assembly for Glock® 19 Complete RMR Slide Assembly for Glock® 19

    Complete RMR Slide Assembly for Glock® 19

    Finish or customize your Gen 3 Glock® 19 with a double serrated, RMR-cut slide. This pre-assembled RMR-cut slide is the perfect way to upgrade your factory G19 Gen 3 pistol and give it a fresh new look. Fabricated from 416 stainless steel billet and...

    Was: $219.99
    Now: $199.99
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    Glock® 43 Compatible - Standard Cut Slide 5 Glock® 43 Compatible - Standard Cut Slide 6 Glock® 43 Compatible - Standard Cut Slide 1 Glock® 43 Compatible - Standard Cut Slide 2 Glock® 43 Compatible - Standard Cut Slide 3

    Glock® 43 Compatible - Standard Cut Slide

    A sleek, Black Nitride-coated, factory-style G43 slide. What more do you need? Sometimes, OEM style is better than added flash and ports. This subdued, matte black nitride GLOCK® 43 compatible slide is made for all factory Gen 3 pistols, and G43-type...

    Was: $129.99
    Now: $89.97
  • Glock® 19 Compatible Lower Parts Kit

    Glock® 19 Compatible Lower Parts Kit (Gen 1-3)

    So you wanna build a Gen 1-3 Glock® 19 compatible compact-sized pistol. You got your Glock® 19 compatible Gen 1-3  compact frame, and now you need the guts to put in it to make it work. No need to scour every corner of the internet to...

    $39.99
  • How to Assemble a Glock Slide- Downloadable Guide How to Assemble a Glock Slide- Downloadable Guide How to Assemble a Glock Slide- Downloadable Guide

    How to Assemble a Glock Slide- Downloadable Guide

    This step-by-step downloadable guide describes how to assmble a glock slide. We’re putting together a GLOCK 19 slide using one of our GLOCK build kits. These instructions are applicable for other slides, too, like the G17 or G43. How do you get...

    $0.00
  • Glock® 17 Compatible Lower Parts Kit

    Glock® 17 Compatible Lower Parts Kit

    So you wanna build a 3rd gen Glock® 17 compatible full-sized pistol. You got your Glock® 17 compatible 3rd gen full-sized frame, and now you need the guts to put in it to make it work. No need to scour every corner of the internet to Frankenstein...

    $39.99
  • Magpul PMAG G19 15rd Magazine Magpul PMAG G19 15rd Magazine 2

    Magpul® PMAG G19 15rd Magazine

    The PMAG G19 15rd magazine is just one of many of Magpul's line forward-thinking firearm accessories. This 9mm magazine is made from polymer, so it is tough enough to take a beating while still being one of the lightest mags in the market, and also...

    $14.20
  • Magpul PMAG G17 17rd Magazine - MAG546-BLK Magpul PMAG G17 17rd Magazine - MAG546-BLK 2

    Magpul® PMAG G17 17rd Magazine

    The Magpul PMAG 17rd magazine is a surprisingly high quality magazine that can easily outperform those in higher price points. Being made from polymer, this magazine is lightweight and incredibly durable with a 17th round witness hole to check for a full...

    $14.20
  • Glock® 19 Compatible Upper Parts Kit

    Glock® 19 Compatible Upper Parts Kit

    If you're going the 80% route and building yourself a gen 3 Glock® 19 compatible pistol, then you need an upper parts kit to match. So let us help you out. This Glock® 19 Compatible Upper Parts Kit is exactly what you need. It includes all the...

    $49.99
  • Glock® 17 Compatible Upper Parts Kit

    Glock® 17 Compatible Upper Parts Kit

    If you're going the 80% route and building yourself a gen 3 Glock® 17 compatible pistol, then you need an upper parts kit to match. So let us help you out. This Glock® 17 Compatible Upper Parts Kit is exactly what you need. It includes all the...

    $49.99
  • glock-compatible-19-barrel-gen-3-1 glock-compatible-19-barrel-gen-3-2 glock-compatible-19-barrel-gen-3-3 glock-compatible-19-barrel-gen-3-4 glock-compatible-19-barrel-gen-3-5

    Glock® 19 Compatible Barrel - Gen 1-4

    Replace that worn out barrel of your your gen 1-4 Glock® 19 or mid-sized Glock® compatible 19 pistol with this G19 barrel. Made with proper US craftsmanship, this Gen3 barrel boasts the highest level of quality and accuracy you’ll ever find...

    $69.99
  • Glock® 19 Gen 3 Compatible Slide Glock® 19 Gen 3 Compatible Slide Glock® 19 Gen 3 Compatible Slide Glock® 19 Gen 3 Compatible Slide

    Glock® 19 Gen 3 Compatible Slide

    This Gen 3 GLOCK® compatible slide is a great, affordable "OEM+" upgrade for your factory pistol or custom build. It features an OEM fit and Black Nitride finish, with upgraded angled front and rear serrations for improved handling. GLOCK® 19...

    $139.99
  • Glock® 17 & 19 Compatible RMR Cover Plate - Black Glock® 17 & 19 Compatible RMR Cover Plate - Black 2

    Glock® 17 & 19 Compatible RMR Cover Plate - Black

    This RMR Cover Plate fits all OEM and aftermarket GLOCK® 17, G19, and Polymer80-equivalent slides that feature a Trijicon RMR optic cut. The screw holes line up with the holes drilled for your slide's optic. Cover Plate Features 100% Made and coated...

    $16.99
  • Glock® 19 Compatible Threaded Barrel - Black

    Glock® 19 Compatible Threaded Barrel - Black

    Got the urge to enhance the performance of your Glock® 19 compatible build even further by using a threaded barrel, so you can screw on a muzzle device? Or perhaps you've got a can picked out or are planning to "DIY" a solvent trap? First off, we're...

    $79.99
  • Glock® Compatible Barrel Thread Protector - 9mm

    Glock® Compatible Barrel Thread Protector - 9mm

    Having a threaded barrel on your 9mm Glock® compatible pistol doesn't mean you have to have a muzzle device or suppressor attached at all times. Sometimes, for storage or EDC, or whatever the case may be, you find a reason to take the attachment off...

    $19.99
  • Glock® 17 Compatible Threaded Barrel - Black

    Glock® 17 Compatible Threaded Barrel - Black

    Got the urge to enhance the performance of your Glock® 17 compatible build even further by using a threaded barrel, so you can screw on a muzzle device? Or perhaps you've got a can picked out or are planning to "DIY" a solvent trap? First off, we're...

    $69.99
  • Glock® 17 Compatible Barrel - Gen 3 Glock® 17 Compatible Barrel - Gen 3 Glock® 17 Compatible Barrel - Gen 3 Glock® 17 Compatible Barrel - Gen 3 Glock® 17 Compatible Barrel - Gen 3

    Glock® 17 Compatible Barrel - Gen 3

    Replace that worn out barrel of your your gen 3 Glock® 17 or full-sized Glock® compatible 17 pistol with this G17 barrel. Made with proper US craftsmanship, this Gen3 barrel boasts the highest level of quality and accuracy you’ll ever find...

    $69.99
  • Glock® OEM Adjustable Rear Sight Glock® OEM Adjustable Rear Sight 2 Glock® OEM Adjustable Rear Sight 3

    Glock® OEM Adjustable Rear Sight

    GLOCK's® adjustable factory rear sight. Includes adjustment tool. Dialing in your finished Polymer80 or factory GLOCK® is now easier, thanks to the OEM adjustable rear sight. With bright white target lines and an easy-to-adjust set screw, the...

    $22.99
  • Glock® 43 Compatible Barrel Glock® 43 Compatible Barrel 2 Glock® 43 Compatible Barrel 3 Glock® 43 Compatible Barrel 4 Glock® 43 Compatible Barrel 5

    Glock® 43 Compatible Barrel

    Let us help you give your Glock® 43 build the most important part of the upper half. This high-quality Glock® 43 compatible barrel, made from certified stress-relieved 416R stainless steel, has undergone the salt-bath nitride process for that...

    $59.99

 Quality GLOCK® Parts for factory and custom-built P80 pistols.

Like the popular AR-type rifle, the GLOCK® handgun is loved for its massive market of aftermarket and custom parts. At 80% Lowers, we're happy to provide a catalogue of American-made, custom GLOCK® barrels, slides, and individual slide and frame parts to complete or upgrade your favorite striker-fired handgun.

P80 Frames and Parts Available

Starting your first "from-scratch" build? Check out the P80 frames.  Need all the other parts to finish your pistol? You're still in the right place! We have lower and upper parts kits, barrels, slides and more! - for GLOCK's most popular handgun series, including the G17, G19, and G43.

Drop-in GLOCK® Barrels and Slides

You built or bought a GLOCK, and now you wanna make it better. Easy. Check out some of our match-grade barrels, like this target-crowned GLOCK 17 barrel. It's compatible with factory and P80 Gen 3 pistols.

Optic-Cut GLOCK® Slides

Few upgrades are better than a micro-red dot, but you need the right optic-cut slide. We've got you covered with quality slides made from 416 stainless, provided by LFA. Their Elite G17 Slide is pre-machined for an aftermarket reflex sight, like the popular Trijicon RMR. Coupled with weight-reducing vents and a tough Cerakote finish, an upgraded slide like the LFA Series is a perfect way to set your GLOCK® or P80 pistol apart from all the rest.


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 80% Lowers, a/k/a 80-lower.com 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.


DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At 80-Lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.