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Handgun Parts

  • Sale
    Complete RMR Slide Assembly for Glock® 21 2 Complete RMR Slide Assembly for Glock® 21 3 Complete RMR Slide Assembly for Glock® 21 4 Complete RMR Slide Assembly for Glock® 21 Complete RMR Slide Assembly for Glock® 21 5

    Complete RMR Slide Assembly for Glock® 21

    This optic-ready slide assembly is the perfect way to finish off your Polymer80 .45 ACP build, or upgrade your current Gen 3 G21 pistol. With front and rear serrations, iron sight mounts, and an RMR footprint, this slide is ready for your favorite reflex...

    Was: $249.99
    Now: $229.99
  • Sale
    UFS 2011/1911 Router Jig Kit 1 UFS 2011/1911 Router Jig Kit 2 UFS 2011/1911 Router Jig Kit 3 UFS 2011/1911 Router Jig Kit 4 UFS 2011/1911 Router Jig Kit 5

    UFS 1911 / 2011 Router Jig | Complete Kit

    The world's first router jig for 80% 1911s and 2011s. Patent pending. Ready to precisely mill your own 80% 1911 frame at home? Got a 2011 chassis you'd like to finish? You need the 1911/2011 router Jig from Unique Firearm Solutions. Providing quick,...

    Was: $299.99
    Now: $279.99
  • Sale
    Glock® 43 Compatible Black Slide 1 Glock® 43 Compatible Black Slide 2 Glock® 43 Compatible Black Slide 3 Glock® 43 Compatible Black Slide 4

    Glock® 43 Compatible Black Slide w/ Rear Serration

    If your aim is to build a Glock® 43 compatible or Glock® 43X compatible pistol, and you like that classic look for your slide better than the flashiness of some of the more cut out aggressive looking slides, then this is your slide. This...

    Was: $139.99
    Now: $124.99
  • Sale
    RMR Optic Cut Slide - Glock® 19 Compatible Slide-1 RMR Optic Cut Slide - Glock® 19 Compatible Slide-2 RMR Optic Cut Slide - Glock® 19 Compatible Slide-3 RMR Optic Cut Slide - Glock® 19 Compatible Slide-4 RMR Optic Cut Slide - Glock® 19 Compatible Slide-5

    RMR Optic Cut Slide - Glock® 19 Compatible Slide

    The Aim Surplus 2S RMR Cut Slide is made out of a durable 416 stainless steel slide coated with a black diamond carbon finish. The 2S has double serrations and Trijicon RMR base pattern cut designed for peak performance. Additionally, this slide is...

    Was: $174.99
    Now: $139.99
  • Sale
    Glock® 17 Compatible Slide w/ Rear Serration - Black Glock® 17 Compatible Slide w/ Rear Serration - Black 2 Glock® 17 Compatible Slide w/ Rear Serration - Black 3 Glock® 17 Compatible Slide w/ Rear Serration - Black 4 Glock® 17 Compatible Slide w/ Rear Serration - Black 5

    Glock® 17 Compatible Slide w/ Rear Serration - Black

    This OEM-style, GLOCK® 17-Compatible Custom Slide features rear serrations and is compatible with all Gen 3 factory frames. Finishing up a 80% full-sized pistol frame? This is the stripped slide you need to get the job done. Machined from quality 416...

    Was: $169.99
    Now: $139.99
  • Sale
    LFA Elite - Glock® 19 Compatible Slide 1 LFA Elite - Glock® 19 Compatible Slide 2 LFA Elite - Glock® 19 Compatible Slide 3 LFA Elite - Glock® 19 Compatible Slide 4

    LFA Elite - Glock® 19 Compatible Slide

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

    Was: $244.99
    Now: $219.99
  • Sale
    Glock® 26 Compatible Barrel - TiN Glock® 26 Compatible Barrel - TiN 2

    Glock® 26 Compatible Barrel - TiN

    Make your Glock® 26 or compatible build look like it was forged in the fires of the ancient Greek Mount Olympus by Hephaestus himself by adding a barrel coated in titanium nitride, or TiN. Exact some godlike vengeance on paper targets with accuracy...

    Was: $99.99
    Now: $64.97
  • Sale
    Glock® 17 Compatible Barrel - TiN

    Glock® 17 Compatible Barrel - TiN

    Make your Glock® 17 or compatible build look like it was forged in the fires of the ancient Greek Mount Olympus by Hephaestus himself by adding a barrel coated in titanium nitride, or TiN. Exact some godlike vengeance on paper targets with accuracy...

    Was: $109.99
    Now: $89.97
  • 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: $114.97
  • 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...

    $41.99
  • Lower Parts Kit for Glock® 17 Compatible Pistol

    Lower Parts Kit for Glock® 17 Compatible Pistol

    So you're ready to build a 3rd gen Glock® 17 compatible full-sized pistol. You've completed the first step of getting your Glock® 17 compatible 3rd gen full-sized frame ready to go. Now comes the part where you track down all the internal parts...

    $41.99
  • 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® 43 Compatible Lower Parts Kit

    Glock® 43 Compatible Lower Parts Kit

    If you're planning to build a Glock® 43 compatible pistol, we commend your initiative. During the process, you'll need a lower parts kit. We're here to help you out. This Glock® 43 compatible lower parts kit comes with everything you need to turn...

    $59.99
  • 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 one of the most affordable magazines that can give those in higher price points a run fort their money. With a complete polymer construct, this magazine is lightweight and extremely rugid and even comes with a 17th round...

    $14.20
  • Lower Parts Kit for Glock® 21 Compatible Pistol

    Lower Parts Kit for Glock® 21 Compatible Pistol

    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
  • 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 Complete RMR Slide Assembly for Glock® 17 5

    Complete RMR Slide Assembly for Glock® 17

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

    $229.99
  • 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® 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® 17 Compatible Upper Parts Kit

    Glock® 17 Compatible Upper Parts Kit

    If you've decided on the 80% route to build yourself a gen 3 Glock® 17 compatible pistol, then you gotta get an upper parts kit to match. We can assist you with that. Glock® 17 Compatible Upper Parts Kit is just what you need. It comes with all...

    $59.99
  • 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

    Look. Maybe you just spent all that money on buying parts for and then building a Glock® 17 or 19 or compatible 17 or 19. You even picked out a slide that's already been cut to accept a Trijicon RMR optic sight, or maybe you had an OEM slide cut for...

    $16.99
  • 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
  • Glock® 26 Compatible Lower Parts Kit

    Glock® 26 Compatible Lower Parts Kit

    So you got your frame, slide, and sights picked out, all based on your preference. Now you need the parts that'll bring life to your 3rd Gen pistol, and we've got you covered... well for the bottom half at least, with this GLOCK® 26 Compatible Lower...

    $49.99
  • 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

    Wanna to reduce the muzzle signature from your Glock® compatible build? Maybe you intend to train at night. Maybe you carry your sidearm as a backup while you hunt. Whatever the reason, if your Glock® compatible sidearm's got a threaded barrel,...

    $29.99

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.