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5 of 5 Items
5 of 5 Items

1911 and GLOCK®-Compatible Build Kits for your 80% frame.

Find every popular build kit for your 80% GLOCK®-compatible (p80) frame, your newly-fabricated aluminum 1911 frame, or even your 80% MUP-1 Sig P320 chassis! Kits are available for most popular GLOCK® models. All 1911 and P320 kits are compatible with fabricated 80% frames, and factory-produced firearms.

GLOCK® Compatible Handgun Kits

 Once you've finished your 80% frame, you'll need a GLOCK® kit - like the ones above - to assemble your frame. Each kit includes the parts for your frame's "upper", or slide, and its "lower" or frame. That means you're getting a complete slide assembly and all frame parts, pins, and springs! All you'll need to hit the range (after fabrication and assembly, of course) is a magazine and some iron sights. 

1911 Handgun Kits

Enter the new-and-improved 80% aluminum 1911 frame! Made by Stealth Arms, these frames are compatible with .45 ACP and 9mm 1911 and Commander builds, making them the perfect way to own an upgraded, lightweight 1911 for a fraction of the price of those "top-tier" factory guns.

All you need to complete your finished 1911 frame's assembly after fabrication is a parts kit from above! Each 1911 build kit includes a full frame parts kit - all pins and springs are included - and a full slide assembly with a match-grade barrel, cut with a target crown. Kits include black diamond-etched grips for comfort and control, plus nitride-treated slide that provides a sleek, black look with an incredibly tough finish. Novak fixed sights are included!

Sig P320 Handgun Kits

Sig Sauer® introduced the modular P320 to fanfare. So, it only makes sense that this easy-to-upgrade handgun got the proper 80% treatment. Now you can build one truly custom, from scratch, in any configuration you want after you finish your MUP-1 insert! Using a fabricated MUP-1 insert, you can assemble a P320-compatible platform in the popular Carry, Full-Size, or Compact configuration. 


DISCLAIMER: “Sig Sauer” is a federally registered trademark of Sig Sauer, Inc. and is one of many trademarks owned by Sig Sauer, Inc. Neither 80% Lowers, a/k/a 80-lower.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.

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 80% Lowers, a/k/a 80-lower.comC 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: 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.