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  • GLOCK® 19 Compatible RMR Optic Cut Slide GLOCK® 19 Compatible RMR Optic Cut Slide-2 GLOCK® 19 Compatible RMR Optic Cut Slide-3 GLOCK® 19 Compatible RMR Optic Cut Slide-4 GLOCK® 19 Compatible RMR Optic Cut Slide-5

    Glock® 19 Compatible Slide w/ RMR Optic Cut Slide

    The Aim Surplus 2S RMR Cut Slide is a 416 stainless steel slide coated with a black diamond carbon finish. The 2S has double serrations and Trijicon RMR base pattern cut for improved performance, additionally is compatible with the Glock® 19 Gen 3...

    $149.99
  • 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
  • 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® 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
  • 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
  • Glock® 43 Compatible Slide - LFA Elite Black 1 Glock® 43 Compatible Slide - LFA Elite Black 2 Glock® 43 Compatible Slide - LFA Elite Black 3 Glock® 43 Compatible Slide - LFA Elite Black 4

    Glock® 43 Compatible Slide - LFA Elite Black

    The LFA Elite Glock® 43 Compatible Slide is manufactured from heat treated 416R stainless steel, which makes it super durable. Coating was done with elite series cerakote and heat-treated at RC 45-48. Compatible with Glock® OEM, Polymer80 and...

    $224.99
  • SIG SAUER® Compatible Full Size Barrel - P320, Black SIG SAUER® Compatible Full Size Barrel - P320, Black 2 SIG SAUER® Compatible Full Size Barrel - P320, Black 3 SIG SAUER® Compatible Full Size Barrel - P320, Black 4 SIG SAUER® Compatible Full Size Barrel - P320, Black 5

    Sig Sauer® Compatible Full Size Barrel - P320, Black

    The Sig Sauer® P320 is an extremely versatile pistol. You can undress and redress it all day, and each time, you can end up with a completely different sized pistol. This jack-of-all-trades pistol eliminates the need to have a different sized pistol...

    $99.99
  • 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 - TiN

    Glock® 19 Compatible Barrel - TiN

    Make your Glock® 19 or compatible build look like it was given to you personally by the ancient Greek gods and goddesses themselves by adding a barrel coated in titanium nitride, or TiN. Be an instrument of their will as you smite paper targets in...

    $99.99
  • Glock® 43 Compatible Barrel - Stainless Steel Glock® 43 Compatible Barrel - Stainless Steel Glock® 43 Compatible Barrel - Stainless Steel Glock® 43 Compatible Barrel - Stainless Steel Glock® 43 Compatible Barrel - Stainless Steel

    Glock® 43 Compatible Barrel - Stainless Steel

    Let us help you give your Glock® 43 build the shiniest and most important part of the upper half. This high-quality stainless steel Glock® 43 compatible barrel, made from heat-treated 416R stainless forgings and has tighter than factory-spec...

    $169.99
  • 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
  • Ghost Edge Connector - G42/G43/43X & 48

    Ghost Edge Connector - G42/G43/43X & 48

    Enhance your trigger's action in your single-stack Glock® or Glock® compatible build. "Swap the slop" of the OEM trigger pull to make your trigger feel smooth and lighter and give it a crisper reset. This is the Edge Connector from Ghost Inc. for...

    $22.45
  • Glock® 21 Compatible Upper Parts Kit

    Glock® 21 Compatible Upper Parts Kit

    Building a custom G21 or PF45 slide? You need this slide parts kit. Ready to build a custom GLOCK® slide for your Gen 3 pistol or Polymer80 build? You need to pair it with a parts kit like this one. We've got your PF45 build (or factory GLOCK®...

    $104.99
  • Glock® OEM Rear Night Sight Glock® OEM Rear Night Sight 2 Glock® OEM Rear Night Sight 3

    Glock® OEM Rear Night Sight

    Genuine GLOCK® OEM Rear Night Sight. 6.5mm tall, with Tritium. Want classic quality? Keep it simple and grab the OEM rear night sight from GLOCK®. It sports bright Tritium dots that make target acquisition and sight alignment in low-light...

    $49.99
  • Glock® OEM Front Night Sight Glock® OEM Front Night Sight 2 Glock® OEM Front Night Sight 3

    Glock® OEM Front Night Sight

    Genuine GLOCK® OEM front night sight. Simple. Sometimes, factory is best. The NF17G24 fits all Gen 1 to 5 pistols, including the GLOCK® 17, 19, 22, 23, 24, 26, 27, 33, 34, 35, 37, 38, and 39. GLOCK's® night sights provide simple but effective...

    $39.99
  • LWD Glock® Compatible Connector - 3.5 lb LWD Glock® Compatible Connector - 3.5 lb 2 LWD Glock® Compatible Connector - 3.5 lb 3 LWD Glock® Compatible Connector - 3.5 lb 4 LWD Glock® Compatible Connector - 3.5 lb 5

    LWD Glock® Compatible Connector - 3.5 lb

    For those of you building a double-stack Glock® compatible pistol (model whatever, gen whatever) who have decided you want a better feel to your trigger than what the OEM or "stock" trigger provides, this is your first step. This is the LWD...

    $14.95
  • Double Diamond 3.5 lb Connector - G42/43/43X/48

    Double Diamond 3.5 lb Connector - G42/43/43X/48

    Upgrade the action of the trigger in your single-stack Glock® or Glock® compatible build. Swap out that nasty, sloppy-feeling OEM trigger pull with one that's smooth, has a much lighter pull weight, and has a much crisper reset. This is the 3.5...

    $24.99
  • Glock® 17 Compatible Slide w/ Front & Rear Serrations 2 Glock® 17 Compatible Slide w/ Front & Rear Serrations Glock® 17 Compatible Slide w/ Front & Rear Serrations 4 Glock® 17 Compatible Slide w/ Front & Rear Serrations 3 Glock® 17 Compatible Slide w/ Front & Rear Serrations 5

    Glock® 17 Compatible Slide w/ Front & Rear Serrations

    The Agent-17 GLOCK® 17 Compatible Custom Slide has front- and rear-cut slide allows for quick and easy completion of your 80% full-sized pistol build with a serrated, customized, high-quality slide. Wrap-around serrations allow for easy handling and...

    $169.99
  • Glock® 43 Compatible Slide - LFA Elite, FDE Glock® 43 Compatible Slide - LFA Elite, FDE Glock® 43 Compatible Slide - LFA Elite, FDE Glock® 43 Compatible Slide - LFA Elite, FDE Glock® 43 Compatible Slide - LFA Elite, FDE

    Glock® 43 Compatible Slide - LFA Elite, FDE

    The LFA Elite Glock® 43 Compatible Slide in the FDE color is a stylish way to set your build off from the rest. Designed from heat treated 416R stainless steel, this kickass looking slide is extremely durable. It features an elite series cerakote and...

    $224.99
  • Glock® 17 Compatible Barrel - PVD Chameleon Glock® 17 Compatible Barrel - PVD Chameleon 2

    Glock® 17 Compatible Barrel - PVD Chameleon

    OEM is boring. Put a sense of style and uniqueness in your Glock® 17 compatible build. Go for a barrel finished with that "oil slick" pattern with this Glock® 17 Compatible Barrel in the PVD Chameleon color. This barrel performs just as well as...

    $89.99
  • Glock® 19 Compatible Slide w/ Rear Serration - FDE 4 Glock® 19 Compatible Slide w/ Rear Serration - FDE 5 Glock® 19 Compatible Slide w/ Rear Serration - FDE Glock® 19 Compatible Slide w/ Rear Serration - FDE 2 Glock® 19 Compatible Slide w/ Rear Serration - FDE 3

    Glock® 19 Compatible Slide w/ Rear Serration - FDE

    Assembling your own Glock 19 pistol with OEM parts doesn't mean it has to be boring or plain. Grab this FDE slide with to add a bit of style to your new 3rd gen pistol. It comes with rear serrations for improved handling as well as 4150 tungsten coating...

    $169.99

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.