unmarked lower

[RC3]

Long story short, how does one put serial numbers on a lower that was a paper weight? I know you can build rifles out of "paper weights", but you can't sell them later. And would one get into trouble for owning a unmarked rifle?

[Dolomite_supafly]

You can legally sell a firearm you make. The key is intent. If you make the firearm with intent to sell you can get in trouble but if you make a firearm with the intent of keeping if then later decide to sell that is legal. Most people who make guns with the intent of selling rarely do one or two so intent is easier to prove.

Although there is no legal requirement for a home made gun to have a serial number adding one can make life a little easier if you try to sell it or if LE questions it. There are thousands of guns made by major companies that do not have serial numbers. They were not required until 1968 so some companies didn't bother.

You can add a serial number any way you want. It must meet ATF requirements which is .003" deep and at least 1/16" tall.

[RC3]

Alright. Thanks for the info. I may ask a gunsmith to etch something in it just for peace of mind.