If you want to print your own AR-15 lower receiver, HaveBlue has uploaded the schematic to Thingiverse(Opens in a new window). HaveBlue tried to use the same lower receiver to make a full-blown ...

Here are three unique AR-15 lower receivers and a couple of accessories that I believe deserve a closer look: KE Arms Monolithic Polymer KP-15 Lower Receiver The use of reinforced polymers to ...

Still, I made a fully metal, functional, and accurate AR-15. To be specific, I made the rifle's lower receiver; that's the body of the gun, the only part that US law defines and regulates as a ...

An internet project aimed at producing defense weapons using 3D printing techniques claims to have created a completely plastic lower for an AR-15. Defense Distributed also say they have test ...

The Ghost Gunner is a small CNC milling machine that costs a mere $1200 and is capable of spitting out an aluminum lower receiver for an AR-15 rifle. This device allows people with no gunsmith ...

The FLR is billed as “…the world’s first folding AR-15 lower receiver – no adapter required.” The Folding Lower Receiver (FLR) features a folding stock mechanism machined and built ...

So next, I used a MakerBot Replicator, and free plans I downloaded from the web to 3D print a plastic AR-15 lower receiver from scratch. Process was incredibly easy, but the results were somewhat ...