80% Lower Receivers FAQ | 80% Arms
Am I required to engrave a serial number onto my 80% lower receiver? Per federal law, an individual building a firearm for personal use is not required to mark it with a serial number.
How to Identify Fake Slot Machines -
The following two photos show where the serial number is typically stamped in Mills machines: Another thing you should be aware of is that the vast majority of reproduction Mills machines are quarter denomination (however, I have seen reproductions in nickel, penny, and dime).