SHIPPING SAME DAY OR NEXT BUSINESS DAY

phone: 888-310-0284

Handgun Parts

  • 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: $99.97
  • Sale
    RMR Optic Cut Slide - Glock® 19 Compatible Slide - FDE RMR Optic Cut Slide - Glock® 19 Compatible Slide - FDE RMR Optic Cut Slide - Glock® 19 Compatible Slide - FDE RMR Optic Cut Slide - Glock® 19 Compatible Slide - FDE

    RMR Optic Cut Slide - Glock® 19 Compatible Slide - FDE

    Gen 3 G19 compatible. RMR optic cut. Ported and serrated. Complete your G19-equivalent P80 build, or upgrade your gen 1 to 3 GLOCK® 19! This custom-machined slide features an RMR optic cut for better target acquisition and improved accuracy. Also...

    Was: $149.99
    Now: $119.97
  • Sale
    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

    If you're building a double-stack Glock® compatible pistol (model "who cares," gen "so what"), and you've learned enough to know you want a better feel to your trigger than what the OEM or factory slop provides, this is your first step. This is the...

    Was: $22.95
    Now: $14.95
  • Sale
    Full-size 5" 1911 9MM Slide Full-size 5" 1911 9MM Slide 2 Full-size 5" 1911 9MM Slide 3 Full-size 5" 1911 9MM Slide 4 Full-size 5" 1911 9MM Slide 5

    Full-Sized 5" 1911 Slide - 9mm

    Upgrade your 9mm 1911 with a fiber-iron slide. This sleek, Parkerized 9mm 1911 slide comes with a high-visiblity fiber optic front iron sight, and double-dot rear open irons for easy sighting. The rear adjustable sight provides a dialed-in zero, while...

    Was: $159.99
    Now: $139.97
  • Sale
    Glock® 42/43 OEM Polymer Fixed Rear Sight Glock® 42/43 OEM Polymer Fixed Rear Sight 2 Glock® 42/43 OEM Polymer Fixed Rear Sight 3

    Glock® 42/43 OEM Polymer Fixed Rear Sight 6.1mm

    GLOCK's® factory "poly" fixed rear sight for G42/43. Keep it simple and save your cash (for that sweet barrel or trigger). The polymer 6.1mm factory rear sight provides a quick and simple solution for your G42 and G43. Use it to finish your...

    Was: $9.99
    Now: $4.97
  • Sale
    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 be of assistance in giving your Glock® 43 build the most important part of the upper half. This excellent Glock® 43 compatible barrel, made from certified stress-relieved 416R stainless steel, has been finished using the salt-bath nitride...

    Was: $69.99
    Now: $49.97
  • Sale
    Rival Arms Compact Guide Rod for Sig Sauer® P320™ Rival Arms Compact Guide Rod for Sig Sauer® P320™

    Rival Arms Compact Guide Rod for Sig Sauer® P320™

    Upgrade your polymer guide rod with stainless steel. The P320™ is one helluva gun -- but it isn't perfect. Sig's love for polymer is wellknown, but this affinity for plastic can hinder the reliability and accuracy of your favorite pistol. The Rival...

    Was: $39.99
    Now: $31.99
  • 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® 21 Compatible Barrel Glock® 21 Compatible Barrel Glock® 21 Compatible Barrel Glock® 21 Compatible Barrel

    Glock® 21 Compatible Barrel

    Top-tier performance at an unbeatable price For consistent cycling and optimal accuracy across all .45 ACP loads, relying on factory-spec components such as this DLC-coated, G21-compatible barrel is a wise choice. Barrel Compatibility This barrel fits...

    Was: $79.99
    Now: $69.97
  • Sale
    GLOCK® 21 Compatible Stainless Steel Fluted Barrel 4 GLOCK® 21 Compatible Stainless Steel Fluted Barrel 5 GLOCK® 21 Compatible Stainless Steel Fluted Barrel 6 GLOCK® 21 Compatible Stainless Steel Fluted Barrel GLOCK® 21 Compatible Stainless Steel Fluted Barrel 2

    GLOCK® 21 Compatible Stainless Steel Fluted Barrel

    GLOCK® 21 and P80 compatible. Fluted for weight savings. Fully polished stainless. There's a lot of quality packed into this little G21-compatible barrel. It's been forged from high-quality 416R stainless steel, cut and fluted to reduce weight, then...

    Was: $99.99
    Now: $84.97
  • 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
    LWD Glock® Compatible Connector - 3.5 lb G42/43

    LWD Glock® Compatible Connector - 3.5 lb G42/43

    For those of you doing a single-stack Glock® 42 or 43 compatible pistol build project who have decided to opt for a better-than-stock trigger pull, this is your first step. This is the LWD Glock® Compatible 3.5 lb Connector for your 42 and 43...

    Was: $22.95
    Now: $17.97
  • 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® 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: $59.97
  • Sale
    GLOCK® 21 Compatible Stainless Steel Barrel 4 GLOCK® 21 Compatible Stainless Steel Barrel 5 GLOCK® 21 Compatible Stainless Steel Barrel 6 GLOCK® 21 Compatible Stainless Steel Barrel GLOCK® 21 Compatible Stainless Steel Barrel 2

    GLOCK® 21 Compatible Stainless Steel Barrel

    Factory Gen 3 and Polymer80 Compatible. Full stainless. This GLOCK® 21-compatible stainless barrel provides high accuracy and good looks at a great price. With a fully polished finish, this barrel's more resistant to corrosion and easier to clean,...

    Was: $99.99
    Now: $84.97
  • Sale
    Glock® 43 Compatible RMSC Cut Bull Nose Slide 1 Glock® 43 Compatible RMSC Cut Bull Nose Slide 2 Glock® 43 Compatible RMSC Cut Bull Nose Slide 3 Glock® 43 Compatible RMSC Cut Bull Nose Slide 4 Glock® 43 Compatible RMSC Cut Bull Nose Slide 5

    Glock® 43 Compatible RMSC Cut Bull Nose Slide

    Improved serrations, better looks, and RMSc-cut. This upgraded GLOCK® 43 slide provides the perfect upgrade for your Gen 3 factory pistol or your Polymer80 PF9SS build. It sports 3D cut and raised front and rear serrations, a slick bull nose front,...

    Was: $189.99
    Now: $119.97
  • Sale
    Glock® 17 Compatible Barrel - PVD Chameleon Glock® 17 Compatible Barrel - PVD Chameleon 2

    Glock® 17 Compatible Barrel - PVD Chameleon

    "Stock" is boring. Put a sense of style and attitude in your Glock® 17 compatible build. Get 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 an...

    Was: $89.99
    Now: $72.97
  • Sale
    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 assist you in giving your Glock® 43 build the shiniest and best part of the upper half. This excellent stainless steel Glock® 43 compatible barrel is created from heat-treated 416R stainless forgings and has tighter than factory-spec...

    Was: $119.99
    Now: $99.97
  • Sale
    Glock® 43 Compatible - Standard Cut Slide (FDE) 1 Glock® 43 Compatible - Standard Cut Slide (FDE) 2 Glock® 43 Compatible - Standard Cut Slide (FDE) 3 Glock® 43 Compatible - Standard Cut Slide (FDE) 4 Glock® 43 Compatible - Standard Cut Slide (FDE) 5

    Glock® 43 Compatible - Standard Cut Slide (FDE)

    Factory fitment, with a rugged Cerakote finish. This GLOCK® 43-Compatible slide works with the PF9SS 80% frame. Front and rear serrations provide easy racking and press checks, while the matte Flat Dark Earth Cerakote finish provides total protection...

    Was: $139.99
    Now: $99.97
  • Sale
    Glock® 43 Compatible - Standard Cut Slide 1 Glock® 43 Compatible - Standard Cut Slide 2 Glock® 43 Compatible - Standard Cut Slide 3 Glock® 43 Compatible - Standard Cut Slide 4 Glock® 43 Compatible - Standard Cut Slide 5

    Glock® 43 Compatible - Standard Cut Slide

    A sleek, Cerakoted, factory-style G43 slide. What more do you need? Sometimes, OEM style is better than added flash and ports. This subdued, matte black Cerakoted GLOCK® 43 compatible slide is made for all factory Gen 3 pistols, and G43-type...

    Was: $129.99
    Now: $89.97

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.