Product Code: 10045-BLK

AR-45 80% Billet Lower - Black Anodized


In Stock! Ships next business day!

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


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.

Shipping Restrictions: 

This item is restricted from shipping to the following: California, Colorado, Connecticut, Hawaii, Illinois, Maryland, Nevada, New Jersey, New York, Oregon, Philadelphia Pennsylvania, Rhode Island, Washington, Washington D.C.

Under California law, this product is or contains an unserialized “firearm precursor part” and cannot be sold into the State of California. 5D Tactical cannot accept any orders of this product for shipment to the State of California, or to any customer who is a resident of the State of California.