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1911 Build Kits

1911 Build Kits

The 1911 is America's favorite handgun. Now you can legally and confidently build a quality, precision, U.S. made shooter of your own -- chambered in good ole' .45 ACP or 9mm -- from scratch! These 1911 Build Kits all feature top-tier components crafted by some of the nation's best gunsmiths. Coupled with a perfectly balanced, hardened steel slide and buttery smooth parts kit, you won't just build an "OK" 1911, you'll wind up owning a handgun that competes with retail guns sporting a 4-digit price tag.

1911 Build Kit Specifications

  • Slide: Hardened steel, GI-style, serrated
  • Slide Finish: Mil-spec Parkerized finish
  • Frame Finish: Mil-spec (Type III) anodized
  • Sights: Novak-style rear sight

Compatibility with Retail 1911 Parts

These 1911 Build Kits are precisely CNC machined and adhere 100% to the 1911's original design. This guarantees compatibility with any OEM or aftermarket retail components you may purchase later to upgrade or reconfigure your handgun. Zero fitting or extra work is required on any parts kit components -- only the 80% 1911 frame itself needs to be cut and drilled using the Stealth Arms 1911 Jig. The Stealth Arms Jig includes the required drill bits and cutting car for completing the frame blank to a ready-to-assemble state.

What's Included With Each Kit:

  • Grip Bushings and Screws
  • Left and Right Grips
  • 9-Piece Pin Set
  • 7-Piece Spring Set
  • Mainspring Housing
  • Grip Safety
  • Thumb Safety
  • Slide Stop
  • Trigger (adjustable)
  • Sear
  • Disconnector
  • Plunger Tube
  • Hammer
  • Hammer Strut
  • Mag Catch Assembly
  • Ejector
  • Slide
  • Barrel, Barrel bushing, Link and Pin
  • Recoil Guide
  • Extractor
  • Firing Pin Stop
  • Novak Fixed Sights
  • (1) 8-Round Magazine

Building a Handgun at Home

Federal law (supported by the Gun Control Act of 1968 and decades of ATF precedent) states that as long as you're a private citizen building a firearm at home for personal use -- and not for sale or the purposes of commercial manufacturing -- it is legal to do. You don't need to apply a serial number to your frame or weapon, and you don't have to file any paperwork with the federal government, ATF, or a local or online FFL. Everything included in the 1911 Build Kit is not considered a firearm under federal law. That means your kit ships directly to your front door like any other product purchased online. Only once you've begun machining the frame blank is it considered a firearm. State laws vary, keep reading.

Shipping Restrictions

Some states have banned gun-making kits like this and some consider these kits and 80% frames to be firearms, contrary to Federal law. Be sure to check all local and state laws before purchasing and building. We cannot fulfill orders or shipments to certain states. To get a better idea of some of the relevant laws for your own research, we recommend taking a look at our 80% Lower Laws Guide (State and Federal). This guide is not legal counsel and cannot be construed as such. If you have further questions, contact an attorney in your state. We also strongly recommend reviewing our Shipment Terms and Conditions to ensure your state is not restricted from shipments of our products.


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.