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36 of 70 Items
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    Glock® 19 Compatible Lower Parts Kit

    Glock® 19 Compatible Lower Parts Kit

    So you wanna build a 3rd gen Glock® 19 compatible compact-sized pistol. You got your Glock® 19 compatible 3rd gen 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 Frankenstein...

    Was: $59.99
    Now: $49.99
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    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...

    Was: $59.99
    Now: $49.99
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    Glock® 43 Compatible Lower Parts Kit

    Glock® 43 Compatible Lower Parts Kit

    If you're building a Glock® 43 compatible pistol, you're awesome, but you'll need a lower parts kit for it. We've got you. This Glock® 43 compatible lower parts kit is brought to you by KM Tactical. It includes everything you need to turn that...

    Was: $71.99
    Now: $59.99
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    glock-compatible-tungsten-slide-t19-1 glock-compatible-tungsten-slide-t19-2 glock-compatible-tungsten-slide-t19-3

    Glock® 19 Compatible Slide w/ Rear Serration

    Make your Glock® 19 compatible pistol build a little more custom, and a little less brick with this black slide. Sure, it performs as well as an OEM slide, because it meets OEM specs. But this one's got the added bonus of being coated in 4150...

    Was: $155.99
    Now: $129.99
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    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...

    Was: $95.99
    Now: $79.99
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    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...

    Was: $65.99
    Now: $54.99
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    Sig Sauer® P320 Lower Parts Kit - 9mm/.40/.357

    Sig Sauer® P320™ Lower Parts Kit - 9mm/.40/.357

    If you're doing a Sig Sauer® P320™ compatible build, you'll need a lower parts kit to get your MUP-1 up and running. That's the part legally considered the firearm and also the part you keep when you're changing out frames, slides, etc., to...

    Was: $179.99
    Now: $149.99
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    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...

    Was: $71.99
    Now: $59.99
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    Glock® Compatible Flash Hider Glock® Compatible Flash Hider 2 Glock® Compatible Flash Hider 3 Glock® Compatible Flash Hider 4 Glock® Compatible Flash Hider 5

    Glock® Compatible Flash Hider - 9mm

    Looking to reduce the muzzle signature from your Glock® compatible build? Maybe you're looking to train at night. Maybe your sidearm is your backup while hunting. Whatever the reason, if you've got a threaded barrel, we've got your solution. This...

    Was: $29.99
    Now: $24.99
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    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

    Look. Maybe your Glock® 17 or 19 or compatible 17 or 19 is completed right down to the slide cuts for a Trijicon RMR optic sight, but you just built your damned sidearm and don't have the $250 bucks to actually buy the optic yet. Or maybe your...

    Was: $20.39
    Now: $16.99
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    glock-17-compatible-barrel-gen-3-1 glock-17-compatible-barrel-gen-3-2 glock-17-compatible-barrel-gen-3-3 glock-17-compatible-barrel-gen-3-4 glock-17-compatible-barrel-gen-3-5

    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...

    Was: $83.99
    Now: $69.99
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    Upper Parts Kit for Glock 43 Compatible & PF9SS Builds

    Upper Parts Kit for Glock 43 Compatible & PF9SS Builds

    If you're building a Glock® 43 compatible pistol, you're awesome, but you'll need an upper parts kit for it. We've got you. This Glock® 43 compatible upper parts kit comes with everything you need to get that Glock® 43 compatible slide up and...

    Was: $77.99
    Now: $64.99
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    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...

    Was: $95.99
    Now: $79.99
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    Glock® 19 Compatible Slide - LFA Elite Black Glock® 19 Compatible Slide - LFA Elite Black -2 Glock® 19 Compatible Slide - LFA Elite Black- 3 Glock® 19 Compatible Slide - LFA Elite Black - 4 Glock® 19 Compatible Slide - LFA Elite Black - 5

    Glock® 19 Compatible Slide - LFA Elite Black

    The "LFA Elite" from Live Free Armory is made out of 416 stainless steel which is heat treated at 38-42 HRC for maximum strength and durability. This slide is lighter in weight with a smoother ejection compared to others. In addition, the LFA Elite is...

    Was: $293.99
    Now: $244.99
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    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...

    Was: $23.99
    Now: $19.99
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    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...

    Was: $83.99
    Now: $69.99
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    Glock® 17 Compatible Slide - LFA Elite Black

    Glock® 17 Compatible Slide - LFA Elite Black

    The LFA 17 Elite Slide is made out of 416 stainless steel, which is heat treated at 38-42 HRC for maximum strength and durability. This slide is lightweight with a smoother ejection compared to others and available with multiple aftermarket reflective...

    Was: $251.99
    Now: $209.99
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    Glock® 19 Compatible Match Grade, Stainless Steel Barrel - Gen 1-4 Glock® 19 Compatible Match Grade, Stainless Steel Barrel - Gen 1-4 2 Glock® 19 Compatible Match Grade, Stainless Steel Barrel - Gen 1-4 3 Glock® 19 Compatible Match Grade, Stainless Steel Barrel - Gen 1-4 4 Glock® 19 Compatible Match Grade, Stainless Steel Barrel - Gen 1-4 5

    Glock® 19 Compatible Stainless Steel Barrel - Gen 1-4

    Get stainless with it. Your Glock® 19 compatible build needs a barrel. Get people asking you questions without saying a word. Let 'em look at your new sidearm, and let the brilliance of a stainless steel match grade barrel catch their eye. That's...

    Was: $95.99
    Now: $79.99
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    Glock® 43 Compatible Black Slide Glock® 43 Compatible Black Slide 2 Glock® 43 Compatible Black Slide 3 Glock® 43 Compatible Black Slide 4 Glock® 43 Compatible Black Slide 5

    Glock® 43 Compatible Black Slide

    If you're building a Glock® 43 compatible or Glock® 43X compatible pistol, and you favor that classic look for your slide over all the flashiness of some of the more cut out aggressive looking slides, then this is the slide for you. This...

    Was: $167.99
    Now: $139.99
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    Glock 17 & 19 Compatible RMR Cover Plate - FDE Glock 17 & 19 Compatible RMR Cover Plate - FDE 2

    Glock® 17 & 19 Compatible RMR Cover Plate - FDE

    Look. Maybe your FDE-colored Glock® 17 or 19 or compatible 17 or 19 is completed right down to the slide cuts for a Trijicon RMR optic sight, but you just built your damned sidearm, might've even spent extra matching up the FDE color on your parts,...

    Was: $20.39
    Now: $16.99
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    GLOCK® 19 Compatible Custom Slide GLOCK® 19 Compatible Custom Slide-2 GLOCK® 19 Compatible Custom Slide-3 GLOCK® 19 Compatible Custom Slide-4 GLOCK® 19 Compatible Custom Slide-5

    Glock® 19 Compatible Slide w/ Front & Rear Serrations

    The Agent-19 GLOCK® 19 Compatible Custom Slide has aggressive front and rear serrations along with standard front and rear sight cuts. Manufactured out of a heat treated 17-4 stainless steel. Compatible with Glock® Gen 1-3 and also Polymer80...

    Was: $203.99
    Now: $169.99
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    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...

    Was: $179.99
    Now: $149.99
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    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...

    Was: $4.79
    Now: $3.99
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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...

    Was: $179.99
    Now: $149.99
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    SIG SAUER® Compatible Slide - P320, Black Cerakote SIG SAUER® Compatible Slide - P320, Black Cerakote 2 SIG SAUER® Compatible Slide - P320, Black Cerakote 3 SIG SAUER® Compatible Slide - P320, Black Cerakote 4 SIG SAUER® Compatible Slide - P320, Black Cerakote 5

    SIG SAUER® Compatible Slide - P320™, Black Cerakote

    The P320 by Sig Sauer® is an extremely versatile sidearm. It can be virtually any size of pistol you need it to be due to its ability to change out its frames, or its "grip modules." This unique feature makes it easy to understand why so many people...

    Was: $335.99
    Now: $279.99
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    Glock® 19 Compatible Slide - LFA Elite Black Glock® 19 Compatible Slide - LFA Elite Black-2 Glock® 19 Compatible Slide - LFA Elite Black-3 Glock® 19 Compatible Slide - LFA Elite Black-4 Glock® 19 Compatible Slide - LFA Elite Black-5

    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...

    Was: $269.99
    Now: $224.99
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    Glock® 17 Compatible Threaded Barrel - Stainless Steel

    Glock® 17 Compatible Threaded Barrel - Stainless Steel

    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? Got the urge to enhance the aesthetics of it as well by going with stainless steel over black? Or...

    Was: $95.99
    Now: $79.99
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    Glock® 17 Compatible Slide - LFA Elite FDE

    LFA Elite Glock® 17 Compatible FDE Slide

    The LFA 17 Elite Slide in the FDE color is made out of 416 stainless steel which is heat treated at 38-42 HRC for maximum strength and durability. This slide is lightweight with a smoother ejection compared to others and available with multiple...

    Was: $251.99
    Now: $209.99
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    Glock® 19 Compatible Slide - LFA Elite FDE

    LFA Elite FDE Glock® 19 Compatible Slide

    The LFA 19 Slide in the FDE color is made out of 416 stainless steel, which is heat treated at 38-42 HRC for maximum strength and durability. This slide is lightweight with a smoother ejection compared to others and available with multiple aftermarket...

    Was: $293.99
    Now: $244.99
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    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...

    Was: $203.99
    Now: $169.99
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    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...

    Was: $107.99
    Now: $89.99
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    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...

    Was: $119.99
    Now: $99.99
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    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...

    Was: $269.99
    Now: $224.99
36 of 70 Items

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

What Parts Are Included with Your Handgun Jigs?

Our jigs are designed to allow you to fabricate an 80% frame for a 1911, GLOCK-compatible handgun, or Sig P320-compatible handgun using the provided firearm receiver blank, bits, and the jig itself. The jig kits do not include the handgun parts kit necessary for assembling your completed frame. With a complete frame, you may purchase any "retail" components compatible with your chosen frame to build a truly custom handgun. In many cases, your may purchase the parts kit on this page, instead. 

What's Included With your Pistol Parts Kits?

Our pistol parts kits include all the components required to assemble your fabricated 80% frame, minus a magazine. Fabricating a pistol (or 80% fire control unit for the P320) for assembly requires purchasing the frame blank and a finishing jig, first. The fabrication and assembly processes require only basic hand tools, most often an electric drill, drill press, Dremel, vise, and files or sandpaper. Because each frame is different, the tool requirements are not universal but similar.

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.

Detailed Instructions & How-To's

No experience is required to master one of these build projects, and easy-to-follow instructions are provided. To get a better idea of what's involved for each platform, reference the instructional build guides below:

 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.

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.