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Handgun Parts

  • 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 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® 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® 21 Compatible Lower Parts Kit

    Glock® 21 Compatible Lower Parts Kit

    Ready to assemble your PF45 or G21 frame? Grab this kit. This Gen 3 GLOCK® compatible lower parts kit is specifically designed for G21 pistols and Polymer80 PF45 frames. It features OEM-spec components to ensure reliability and an easy installation...

    $74.99
  • Glock® Compatible HD Fiber Optic Sight Set 1 Glock® Compatible HD Fiber Optic Sight Set 2 Glock® Compatible HD Fiber Optic Sight Set 3 Glock® Compatible HD Fiber Optic Sight Set 4 Glock® Compatible HD Fiber Optic Sight Set 5

    Glock® Compatible HD Fiber Optic Sight Set

    Bright HD fiber optics for your GLOCK® slide. This HD Sight kit's front iron sight provides a crisp, bright red glow, even in low-light conditions. The rear sight features a simple but effective open leaf with subtle knurling to reduce even faint...

    $44.99
  • Glock® 17 & 19 Compatible RMR Cover Plate - FDE Glock® 17 & 19 Compatible RMR Cover Plate - FDE

    Glock® 17 & 19 Compatible RMR Cover Plate - FDE

    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...

    $16.99
  • Complete RMR Slide Assembly for Glock® 17 1 Complete RMR Slide Assembly for Glock® 17 2 Complete RMR Slide Assembly for Glock® 17 3 Complete RMR Slide Assembly for Glock® 17 4 Complete RMR Slide Assembly for Glock® 17 5

    Complete RMR Slide Assembly for Glock® 17

    This RMR-cut slide assembly is the perfect way to finish off your Polymer80 PF940v2 build, or give your current Gen 3 G17 pistol an upgrade. With front and rear serrations, iron sight mounts, and an RMR cut-out, this slide is ready for your favorite...

    $239.99
  • LANTAC SSR-3.5˜Super Short Reset 3.5 lb Connector

    LANTAC SSR-3.5 lb Super Short Reset 3.5 lb Connector

    Out of the box, some people don't like the feel of the factory trigger pull on their new Glock®. But not to worry, fixing an undesireable trigger pull is one of the easiest jobs you can do to the internal components. Even easier, if you're building...

    $15.99
  • Glock® Compatible Competition Spring Kit

    Glock® Compatible Competition Spring Kit

    What do you mean you're not exactly like me as a gen 1-4 Glock® compatible shooter?! What do you mean your performance preferences aren't exactly like mine?! Well, I guess you'll just have to customize the hell out of your gen 1-4 Glock®...

    $14.99
  • Glock® Compatible 6.0 lb Trigger Spring – Gen 1-4

    Glock® Compatible 6.0 lb Trigger Spring - Gen 1-4

    You've decided your gen 1-4 double-stack Glock® Compatible pistol's trigger performs well enough; you just wish it was a touch smoother and maybe a tiny bit lighter. Good, we can help you out with the Glock® Compatible 6.0 lb Trigger Spring for...

    $3.99
  • 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 Black Slide 4 Glock® 43 Compatible Black Slide 1 Glock® 43 Compatible Black Slide 2 Glock® 43 Compatible Black Slide 3

    Glock® 43 Compatible Black Slide

    Gen 3 compatible. OEM specs, style, and fitment. This GLOCK® 43/43X-compatible slide features OEM specifications and a factory-equivalent fit and finish, making it an ideal replacement or upgrade for your G43, G43X or Polymer80 build. This slide's...

    $139.99
  • 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...

    $149.99
  • Glock® OEM Front Sight Glock® OEM Front Sight 2 Glock® OEM Front Sight 3

    Glock® OEM Front Sight

    Finish your frame with a factory GLOCK® Front Sight. Ready to finish your P80 frame? Or need to swap out your factory pistol's front sight? Grab the OEM Steel Front Sight. This simple, universal-fit sight is compatible with all GLOCK® models...

    $14.99
  • Ghost Complete Trigger Kit - Pro 3.3

    Ghost Complete Trigger Kit - Pro 3.3

    So you've decided to build your own double stack Glock® compatible pistol. You have a size whatever, gen whatever. And you know something about triggers beyond just hearing "you need these parts" and then blindly just using the trigger parts that...

    $44.95
  • Glock® 19 Compatible Slide w/ Front & Rear Serrations 4 Glock® 19 Compatible Slide w/ Front & Rear Serrations 1 Glock® 19 Compatible Slide w/ Front & Rear Serrations 2 Glock® 19 Compatible Slide w/ Front & Rear Serrations 3

    Glock® 19 Compatible Slide w/ Front & Rear Serrations

    Gen 3 G19 compatible. Upgraded front and rear angled serrations. This gen 3 G19-compatible slide is a great, affordable, "OEM+" upgrade for your factory pistol or P80 build. It features an OEM fit and finish, but with upgraded, angled front and rear...

    $169.99
  • Double Diamond Connector - BLACK YIKES 3.0 Double Diamond Connector - BLACK YIKES 3.0 2

    Double Diamond Connector - BLACK YIKES 3.0

    If you're building your Glock® compatible pistol and you've gotten to the part of the process where you install parts that make up a functioning trigger, stop for a sec. What kind of feel do you want your trigger to have? I ask, because let's face...

    $27.99
  • Glock® 19 Compatible Barrel - PVD Chameleon Glock® 19 Compatible Barrel - PVD Chameleon 2

    Glock® 19 Compatible Barrel - PVD Chameleon

    OEM is boring. Put a sense of style and uniqueness in your Glock® 19 compatible build. Go for a barrel finished with that "oil slick" pattern with this Glock® 19 Compatible Barrel in the PVD Chameleon color. This barrel performs just as well as...

    $89.99

Quality 80% handgun parts for the 1911, Polymer80 GLOCK®, and Sig Sauer P320 platforms.

Whether you love customizing your weapons from the ground up or you're a first-time owner ready to exercise your Second Amendment rights, these 80 percent handgun parts kits provide most tools required for assembling a completed 80% pistol frame (sold separately, fabrication required) into a truly reliable, accurate pistol. These handgun parts are designed by experienced arms makers and use only components made in the U.S.

Available Handgun Parts & Frames

These 80% parts are available for the following makes and models:

  • 1911 Government (.45, 9mm)
  • 1911 Commander (.45, 9mm)
  • Sig Sauer P320 Carry-Size
  • Sig Sauer P320 Full-Size
  • GLOCK® Series of handguns
    • PF940C is compatible with G19, G23, and G32
    • PF940v2 is compatible with G17, G22, G24, G31, G34, and G35
    • PF940SC is compatible with G26, G27

Pistol Parts Kits: What's Included

Our pistol parts kits include all the components required to assemble your fabricated 80% frame, minus a magazine. Of course, customizing a pistol from scratch is one reason why many owners choose to build their pistols in the first place. Check out our custom GLOCK slides, frame parts kits, and upgraded barrels.

State Laws Vary

Some states have restricted handgun parts and kits, like those available here. States like California require that you undergo a background check and serialize your handgun before you build it. Other states have banned 80% handguns and build kits altogether.

Please read our Shipping & Return Policy to determine if we can ship to your state. Orders placed by residents in restricted states cannot be fulfilled and will be canceled, less any restocking fees.

 Now get started! Your custom handgun build awaits.


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 Tactical Gear Heads, LLC 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“Sig Sauer” is a federally registered trademark of Sig Sauer, Inc. and is one of many trademarks owned by Sig Sauer, Inc. Neither 80% Lowers, a/k/a Tactical Gear Heads, LLC nor this site are affiliated in any manner with, or otherwise endorsed by, Sig Sauer, Inc. The use of “Sig Sauer” on this page is merely to advertise the sale of Sig Sauer pistols, parts, or components. For additional genuine Sig Sauer, Inc. products and parts visit www.sigsauer.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.


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.