Shipping within 2-3 business days due to high demand

phone: 888-310-0284

Handgun Parts

30 of 38 Items
  • Sale
    Glock® Compatible 19 Gen 4 Lower Parts Kit

    Glock® Compatible 19 Gen 4 Lower Parts Kit

    We take factory Glock® compatible 19 pistols and completely mod and customize them. In the same way the AR-15 is the most adaptable rifle in the world, the Glock® compatible pistol is the most adaptable handgun. However, the vast majority of the...

    Was: $99.99
    Now: $79.97
  • Sale
    Ghost Ultimate 3.5 lb Trigger For Glocks® - Gen 1-5

    Ghost Ultimate 3.5 lb Connector For Glock® - Gen 1-5

    For those of us who really put work in with our double-stack Glock® compatible pistols, we have to take extra care of our sidearms, so we don't have to spend more time cleaning the crap out of 'em after a good training session or duty. Too much...

    Was: $17.95
    Now: $13.97
  • Sale
    Firing Pin Channel Liner For Glock®

    Firing Pin Channel Liner For Glock®

    This OEM firing pin channel liner fits all GLOCKs. Not required for GLOCK® 42 or G43. The firing pin channel liner's a critical component of any GLOCK® or Polymer80 slide. This liner is considered a single-use component; removal requires...

    Was: $5.99
    Now: $3.97
  • Sale
    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

    This optic-ready slide assembly is the perfect way to upgrade your current Gen 3 G19 pistol. With front and rear serrations, iron sight mounts, and an RMR footprint, this slide is ready for your favorite reflex sight and compatible irons. Optics and RMR...

    Was: $219.99
    Now: $199.99
  • Sale
    Glock® Compatible 6.0 lb Trigger Spring – Gen 1-4

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

    You've gotten used to your gen 1-4 double-stack Glock® Compatible pistol's trigger and even think it performs adequately; you'd just like it to be a touch smoother and maybe a tiny bit lighter. No worries, we can help you out with the Glock®...

    Was: $3.99
    Now: $2.97
  • Sale
    Sylvan Arms - 9MM Glock® Compensator - 1/2 x 28 RH Sylvan Arms - 9MM Glock® Compensator - 1/2 x 28 RH 2 Sylvan Arms - 9MM Glock® Compensator - 1/2 x 28 RH 3

    Sylvan Arms - 9MM Glock® Compensator - 1/2 x 28 RH

    Sylvan Arms Compensator: The affordable way to better accuracy. Sylvan Arms' 9MM GLOCK® Comp provides an immediate reduction in muzzle rise and felt recoil, dialing in your shot groups with little effort. It installs easily, requiring no custom...

    Was: $89.99
    Now: $69.97
  • Sale
    P320™ Upper Parts Kit P320™ Upper Parts Kit P320™ Upper Parts Kit P320™ Upper Parts Kit P320™ Upper Parts Kit

    P320™ Upper Parts Kit

    Finish your custom 9mm P320™ slide. This quality, OEM-spec P320™ upper parts kit provides the internals necessary for assembling your custom P320™ slide. It's also compatible with factory slides, allowing you swap components as needed...

    $63.97 - $89.97
  • Sale
    Glock® 19 Compatible Barrel - PVD Chameleon Glock® 19 Compatible Barrel - PVD Chameleon 2

    Glock® 19 Compatible Barrel - PVD Chameleon

    "Stock" is boring. Put a sense of style and attitude in your Glock® 19 compatible build. Get 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 an...

    Was: $89.99
    Now: $59.97
  • Sale
    Glock® 19 Gen 5 Compatible Slide - LFA Elite Black Glock® 19 Gen 5 Compatible Slide - LFA Elite Black Glock® 19 Gen 5 Compatible Slide - LFA Elite Black Glock® 19 Gen 5 Compatible Slide - LFA Elite Black Glock® 19 Gen 5 Compatible Slide - LFA Elite Black

    Glock® 19 Gen 5 Compatible Slide - LFA Elite Black

    Machined from 416 stainless. Features Trijicon RMR cut. This gen 5-compatible GLOCK® slide provides a perfect upgrade for your factory pistol. Machined from 416 Crucible stainless and finished in matte black Cerakote, it's guaranteed to withstand...

    Was: $199.99
    Now: $169.97
  • Sale
    Glock® Compatible Non-Adjustable Pyramid Trigger - Black

    Glock® Compatible Non-Adjustable Pyramid Trigger - Black

    The Glock® compatible pistol fits into the category of "most customizable pistols ever." You can upgrade, replace, or otherwise swap out every single part. But before you fix yours up to truly make it your own, start with an upgrade that makes sense,...

    Was: $199.99
    Now: $99.97
  • Sale
    Compact Barrel for Sig Sauer® P320™ - Nitride Black Compact Barrel for Sig Sauer® P320™ - Nitride Black Compact Barrel for Sig Sauer® P320™ - Nitride Black Compact Barrel for Sig Sauer® P320™ - Nitride Black

    Compact Barrel for Sig Sauer® P320™ - Nitride Black

    Forged from match-grade 416R stainless. Nitrided. Improve the accuracy of your P320™ Compact quickly and easily with this upgraded drop-in barrel. It's forged from Crucible 416R Stainless -- the same steel developed specifically for F-class bench...

    Was: $74.99
    Now: $39.97
  • Sale
    Compact Barrel for Sig Sauer® P320™ - TiN Compact Barrel for Sig Sauer® P320™ - TiN Compact Barrel for Sig Sauer® P320™ - TiN Compact Barrel for Sig Sauer® P320™ - TiN

    Compact Barrel for Sig Sauer® P320™ - TiN

    Gold-tier performance for your P320™ Compact. This gold TiN P320™ barrel provides the best in accuracy and aesthetics. Forged from Crucible 416R stainless, broach rifled for better accuracy, and finished in a micron-accurate Titanium Nitride...

    Was: $74.99
    Now: $39.97
  • Lower Parts Kit for Glock® 19 Compatible Pistol

    Lower Parts Kit for Glock® 19 Compatible Pistol

    So you're ready to build a 3rd gen Glock® 19 compatible compact-sized pistol. You've completed the first step of getting your Glock® 19 compatible 3rd gen compact frame ready to go. Now comes the part where you track down all the internal parts...

    $44.99
  • Magpul PMAG G19 15rd Magazine Magpul PMAG G19 15rd Magazine 2

    Magpul® PMAG G19 15rd Magazine

    Magpul is dedicated to improving your shooting experience through innovative firearm accessories, and the Magpul PMAG G19 15rd Magazine is just one of many. This 9mm magazine is made from polymer, so it is rugged enough to take a beating while still...

    $14.20
  • Glock® 19 Compatible Upper Parts Kit

    Glock® 19 Compatible Upper Parts Kit

    If you've decided on the 80% route to build yourself a gen 3 Glock® 19 compatible pistol, then you gotta get an upper parts kit to match. We can assist you with that. Glock® 19 Compatible Upper Parts Kit is just what you need. It comes with all...

    $54.99
  • 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® Compatible Competition Spring Kit

    Glock® Compatible Competition Spring Kit

    So you're saying you're not exactly like me as a gen 1-4 Glock® compatible shooter? So you're saying your performance preferences aren't exactly like mine? Well, I guess you could always customize the crap out of your gen 1-4 Glock® compatible...

    $14.99
  • Glock® 19 Compatible Threaded Barrel - Black

    Glock® 19 Compatible Threaded Barrel - Black

    Got plans to improve the performance of your Glock® 19 compatible build even further by going with a barrel, to allow you to install a muzzle device? Or perhaps you've got a suppressor picked out or are planning to do a solvent trap build? First off,...

    $79.99
  • gen-3-glock-19-compatible-barrel-2 gen-3-glock-19-compatible-barrel-1 gen-3-glock-19-compatible-barrel-3 gen-3-glock-19-compatible-barrel-4 gen-3-glock-19-compatible-barrel-5

    Gen 1-4 Glock® 19 Compatible Barrel

    Give that gen 1-4 Glock® 19 or mid-sized Glock® compatible 19 pistol an upgrade with this G19 barrel. Made with proper US craftsmanship, this Gen 1-4 barrel boasts the highest level of quality and accuracy you’ll ever find in any full-sized...

    $69.99
  • Glock® 19 Compatible Slide w/ Rear Serration 1 Glock® 19 Compatible Slide w/ Rear Serration 2 Glock® 19 Compatible Slide w/ Rear Serration 3 Glock® 19 Compatible Slide w/ Rear Serration 4

    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 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 tungsten...

    $149.99
  • Glock® 19 Compatible Slide w/ Rear Serration - FDE 1 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 4

    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...

    $129.99
  • FDE Glock® 19 Compatible Slide by LFA Elite 1 FDE Glock® 19 Compatible Slide by LFA Elite 2 FDE Glock® 19 Compatible Slide by LFA Elite 3 FDE Glock® 19 Compatible Slide by LFA Elite 4

    FDE Glock® 19 Compatible Slide by LFA Elite

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

    $189.99
30 of 38 Items

U.S.-made handgun parts for GLOCK, Polymer80 and 1911.

Building a custom GLOCK-compatible P80 handgun or 1911 from scratch? Want to upgrade your factory pistol with some high-performance components? You're in the right place: We have a quality selection of US-made parts, barrels, slides, internals, and accessories for those platforms. Whether you need a threaded barrel, ported and optic-cut slide, parts kit, or an upgraded trigger, we have you covered.

Handgun Parts to Upgrade Your GLOCK or 1911

Building a P80-framed hand? Grab a GLOCK-compatible parts kit to to finish your build after fabricating your frame. Take the opportunity to upgrade with a custom slide and barrel, too! We've sourced a quality selection of GLOCK slides that include unique coatings, RMR cuts for a micro red dot, and lightweight designs.

Custom 1911 and P80 parts

Custom 1911s can fetch premium prices. But if you want to own a custom .45 or 9mm, you don't have to pay those high prices. Fabricating your 1911 from an aluminum 80% frame means you get to cherry-pick the upgraded parts you want to finish your build. Pair your frame with the Stealth Arms 1911 Jig to start fabricating. Once fabricated, you can install your upgraded 1911 barrel, slide, and parts kit.

How to Complete an 80% 1911 Frame

State Laws Vary

Some states have banned certain firearm parts, including parts available and shown here. We cannot fulfill orders placed by residents in those restricted states. Check your local and state laws, and please confirm whether we can ship to your state before ordering.

 


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 GunBuilders.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: “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 Gun Builders Depot, a/k/a GunBuilders.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: “Sig Sauer” is a federally registered trademark of Sig Sauer, Inc. and is one of many trademarks owned by Sig Sauer, Inc. Neither GunB Builders Depot, a/k/a GunBuilders.com 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.

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.