And the minute you put a serial number on it you become the manufacturer. Gotta firearms manufacturing license?

again can you show the ruling on this vs hear say

I was a licensed dealer for a decade it is not a RULEING it is a BATF&E federal regulation .
When you become a licensee in addition to your license, the ATF sends you t two books, one red, one blue. the blue one is the current laws and regulation published by the individual states. with addendums mailed out as new statues become law.
The Red one is all of the FEDERAL regulations pertaining to firearms. Both books are updated and reprinted and sent out periodically as they become incomplete as to new regulation. This happens about once every three years. Occasionally between updates a ATF NOTIFICATION will arrive with new info pertaining to new regs and when they will be in effect.
If you have a question about firearm laws the phone books have a listing for your regional Bureau of ALCOHOL
TOBACCO FIREARMS & EXPLOSIVES office and you can call them and speak to a federal agent and ask them whatever questions you need to know. The answer they give you will come from one or both of those two books

There are several businesses that sell parts kits Brownells, Rock River arms, CDNN. Cylinder and Slide. To name a few.
Sorry Gary just read your post didn’t realize the closet clowns had ya surrounded.

Kansas law says if you stamp made in Kansas on a firearm you built, and sell it to a resident of KS, its legal. The state wont back anybody up on it though. Right after the law passed a a couple guys near Junction City were arrested. Nothing but crickets from the state. Ok to make marijuana legal in spite of federal law but not firearms. Go figure.....

danny i meant to say you cant. look under atf website, it clearly states

Nope just what I heard, looking at post below he says they cannot be sold

Federal law does not require a homemade gun to have an identifying marker (such as a serial number), as long as it remains in the possession of the original maker. However, if the gun is subsequently sold or otherwise transferred, it should be marked prior to its disposition. The ATF suggests that all homemade firearms be marked with a serial number as a safeguard in the event the firearm is lost or stolen, but requires it if the gun is otherwise lawfully transferred in the future.

The key in determining whether a homemade gun can be legally sold or transferred rests with knowing the intent of the maker when the gun was first created. Relevant factors in determining the transferor’s intent may include: the length of time between the creation of the firearm and its transfer; the specific reason for the sale or transfer; and whether the maker of the firearm frequently sells or transfers homemade firearms. For example, a time lapse between creation and sale of many years, a reason for sale that has no sinister overtones, and a transfer that is one-in-a-lifetime for the transferor, would indicate an original intent to keep the gun. By contrast, quickly transferring a gun right after its creation, to someone who could not legally possess a firearm, by someone who regularly transfers such guns, would indicate a lack of intent to keep the gun.