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5 of 5 Items
5 of 5 Items

Complete your 1911 frame -- or upgrade it, with a quality build kit.

Our 1911 build kits feature high-end, precisely machined components. Everything is forged from gun barrel steel and 7075-T6 aluminum, ensuring reliability and smooth operation out of the box. A 1911 build kit is required for assembling your completed 80% 1911 frame. Or, you can upgrade an entry-level 1911 with one of our kits and enjoy better functionality and accuracy. 

1911 Kits: What's Included

Each kit includes the parts required to assemble your frame's upper assembly -- the slide, barrel, hammer, and pins and springs required therein -- and all pin, springs, trigger and safety components, and other parts required for making your frame functional. 

Your kit will not include a magazine or a frame. Both must be supplied by you to complete your 1911.

State Laws Vary

Some states require serialization of your lower before completion (here's a guide on how to do that), and some states have banned 80% lower receivers, certain firearm parts, and other products we sell. Check your local and state laws, and please confirm whether we can ship to your state before ordering.

Your custom 1911 build awaits you.

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, 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 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

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.