Comment by duchenne

If they are worried about firearms, why don't they target CNC mills rather than 3d printer? Can you even make a firearm in plastic?

Some US company specialize in selling CNC mills specifically for firearms.

Ex: https://realghostguns.com/product/gg3-s-cnc-deposit/

    It is sold with the cut codes for the AR-15, AR-.308, 1911, Polymer80 and AK-47 receivers and frames.