Product Code: 10045-BLK

AR-45 80% Billet Lower - Black Anodized

Current Stock:

Introducing our new AR-45 lower receiver! This lower receiver, precision-machined and based on the robust AR platform, is designed to fit both .45 ACP and 10mm Glock magazines, increasing the firepower this pistol caliber package can provide.

The AR-45 lower's quality machining is protected by a durable Type III hard anodized finish. Compatible with any mil-spec standard AR-15 lower parts kit, it allows for extensive customization with AR-15 aftermarket parts.

Our 80% lowers are crafted from 6061-T6 aluminum, blending ease of machining with long-term durability and corrosion resistance.


  • Compatible with multiple .45ACP and select 10mm upper receivers
  • Compatible with .45 ACP and 10mm Glock magazines
  • Precision CNC Machined using state-of-the-art equipment
  • Aluminum 6061 Construction
  • Fire Selector Engraving
  • Accepts AR-15 Mil-Spec Parts
  • Flared Magazine Well
  • Threaded Bolt Catch (Screw Included!)
  • Integrated Trigger Guard
  • Completed rear takedown lug pocket
  • Type III Hard Anodized Finish

*Please Note This item is restricted from shipping to the following locations: 

California, Colorado, Connecticut, Hawaii, Illinois, Maryland, New Jersey, New York, Oregon, Philadelphia Pennsylvania, Rhode Island, Washington, Washington D.C. 


5D Tactical is the perfect place to find all of the 80% billet lowers that you need for your build. We carry a wide variety of styles and finishes, so you can find the perfect one for your project.

Our black anodized 80% lower is a great choice for gun owners who want a durable, tough finish on their firearm. To find the perfect 80% lower receiver for your next build, reach out to our team today.