But precisely finishing the last 20 percent of a lower receiver has still required access to a milling machine that typically costs tens of thousands of dollars. The Ghost Gunner, which measures ...

Milling machines are nice to have around for precisely drilling holes or removing unwanted material from a part. However, they can be expensive and may not get a lot of use, two reasons why a mill … ...

Most DIY CNC milling machines we see use a gantry arrangement, where the bed is fixed while everything else moves around it. On most commercial metal milling machines, the table is the moving part ...

That metal piece is openly sold by various vendors, usually for under $100. Some of the vendors have received certification from the ATF that these 80 percent lowers are not, in fact, firearms.

In 2022, Defense Distributed sued California over a law that made it illegal for anyone without a federal license to manufacture guns to “sell, offer to sell, or transfer a CNC milling machine ...