5 of 5 Items
5 of 5 Items
Build a high-performance, reliable 1911 without the brand tax. Our 1911 kit collection brings together ready-to-install parts kits and precision components so you can finish your 80% 1911 frame or upgrade a factory pistol. Whether you're shopping for a 9mm 1911 kit or a .45 ACP configuration, these kits include the essential pins, springs, slide, and fitted components to get you shooting sooner.
That's why we think it's smart to just build your custom 1911 piece by piece. We carefully configured each 1911 Build Kit on this page to provide the most accuracy and reliability possible. Each piece is precisely CNC machined from quality 416R stainless, 4150 CMV steel, or quality billet 6061-T6 aluminum. Whether shopping for a 9mm or .45 setup, each kit piece is fitted and ready for assembly out of the box.
Use our picture guides! These provide step-by-step instructions for assembling your slide and frame.
Q: Will these 1911 kits fit my 80% 1911 frame?
A: The 1911 kits on this page are built to mil-spec dimensions and will fit our 80% 1911 frames.
Q: Will these kits fit a retail-bought 1911 frame?
A: In most cases, yes. But your frame must be a 70-series frame. You must also confirm whether your frame is cut for your kit's barrel. Some barrels have ramps, while others are unramped. This will be mentioned in each kit's product description.
Q: Do these kits include a slide and barrel?
A: Yes. Our 1911 kits include a government-length (5") slide and matching barrel. Some listings offer premium slides and finishes.
Q: Can I convert a .45 1911 to 9mm with these kits?
A: Conversions generally aren't possible, because the 1911's frame is designed to fit one type of magazine for one caliber. A .45-caliber frame would be too wide to hold 9mm parts, while a 9mm frame would be too skinny to hold .45-caliber parts.
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.