The Franklin Armory Libertas Built Binary-Equipped Lower Receiver in black is a complete AR-15 lower with a Binary AR-Elite trigger installed (Franklin Armory part no. 00-20023-BLK). Franklin Armory machines the Libertas lower from 7075-T6 aluminum with ambidextrous QD sling mounts, a flared magazine well and a built-in enlarged trigger guard. A B5 SOPMOD stock, a B5 P-Grip 22 and a Magpul PMAG 30 round magazine complete the build. It is a ready-to-mate lower for a custom AR-15 build.

Key Specifications

• The lower receiver is the Libertas, Franklin Armory’s lower design for this build.
• The material is 7075-T6 aluminum, a high-strength alloy common in AR-15 receivers.
• The trigger is the Binary AR-Elite, Franklin Armory’s binary firing system.
• The stock is a B5 SOPMOD, which sets the buttstock for the build.
• The grip is a B5 P-Grip 22, a comfortable shape for control.
• A Magpul PMAG 30 round magazine is included.
• The lower has ambidextrous QD sling mounts, for sling attachment on either side.
• A flared magazine well guides the magazine into place during reloads.
• A built-in enlarged trigger guard gives extra room around the trigger.
• A specialized tension screw is part of the lower, a Franklin Armory feature.

Frequently Asked Questions

What trigger comes in the Libertas lower? It has the Binary AR-Elite trigger from Franklin Armory installed.

What is included with the lower? It includes a B5 SOPMOD stock, a B5 P-Grip 22 and a Magpul PMAG 30 round magazine.

What is the lower made of? It is made from 7075-T6 aluminum.

Buy the Franklin Armory Libertas Built Binary-Equipped Lower Receiver, Black

The Libertas lower already has the binary trigger, stock, grip and magazine installed, so a build can start with the upper and barrel. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more AR-15 lowers.