[ Finn understands the curiosity. He's much the same, especially when it comes to potentially dangerous stuff like this. ]

It can make firearms easily. [ He points to a wall lined with blasters and guns, rifles, pistols, even a bazooka tucked away from someone that was just bored one day. To Itachi, they probably don't appear to be much other than some sort of mechanized weapon. ]

From what I understand, so long as you know what you want and have the schematics in your head, it'll make that to your specifications. All it needs are the materials and instructions.