Well, federally, you cannot just stamp a serial number.  It is illegal to alter a numner or put one on it unless you are a manufacturer or you apply to the ATF for a serial number and they provide you with one.   
 
And regarding NICS checks, they are done by a dealer regardless of if there is a serial number or not.  It is if any firearm is sold.  And the serial number is not communicated to the NICS at any time of the process.
		 
		
		
		
		
		
		
			
				__________________ 
				B. Dudley
			 
		
		
		
		
	 |