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80% Lower Patriot Pack

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Build all three ARs with one 80% lower combo kit.

Originally chambered in 5.56 NATO and .223 remington, the AR has evolved to chamber different calibers, with upper and lower receivers redesigned to include the .308 AR-10, and the 9mm AR9. It can be hard to choose a favorite. So, don't settle -- just grab this bundle of 80% lowers for every AR platform!

(1) Black Forged AR15 80% Lower Receiver

  • Color: Anodized Black
  • 100% Mil-Spec
  • Fire/Safe Marked: Yes
  • Forged 7075-T6 Aluminum
  • Broached Magwell
  • 100% Made in the USA

(1) Black Billet 9MM 80% Lower Receiver

  • Color: Anodized Black
  • Type III Hard anodized (mil-spec)
  • Fire/Safe Marked: Yes
  • Compatible with Glock® magazines
  • 6061-T6 billet aluminum construction
  • Enhanced, heavy-duty trigger guard
  • Threaded bolt catch hole (threaded pin included)
  • 100% Made in the USA

(1) Black Billet .308 80% Lower Receiver

  • Color: Anodized Black
  • Fire/Safe Marked: No
  • Threaded Bolt Catch Hole (threaded pin not included)
  • Billet 7075-T6 Aluminum
  • Broached Magwell
  • Heavy Duty Trigger Guard
  • 100% Made in the USA

.308 Receiver & Parts Kit Compatibility

Due to the varying quality and compatibility of .308 builds, we recommend using our LR-308/AR-10 Lower Parts Kit. This lower parts kit includes the correct bolt catch threaded pin, too, which makes install a breeze.

Assembling Your 80% Lowers

Once each lower is fabricated, it's time to assemble it. For each build (AR-15, AR-10, and AR9) You'll need the following components, available below. Make sure to filter by the platform when selecting each component for each type of receiver.

Need Help Building? Read Our Guides

Follow our step-by-step picture guide to install your lower parts kits and buffer assemblies! These instructions apply to all lowers.

Not sure which parts to pick? Read our Ultimate Guide on How to Build an AR-15. This guide covers 9mm, 308, and 5.56 builds.

New to building custom guns? Read our FAQ: What Is An 80% Lower?



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 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

WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to:

Shipping Restrictions

Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily. only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

Billet 6061-T6 Aluminum
Forged 7075-T6 Aluminum
.308 Winchester
.223 Wylde
6.5 Creedmoor
.300 AAC Blackout

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.