Where is the serial number on my old .22 rifle?
There may not be any. For a period of years between 1930 and 1968, Mossberg did not put serial numbers on their long guns, preferring to pass along that cost savings to the consumer. Early Model K, L, M and S rifles did have a serial number, as did the .22 training rifles made for the military (44US) and British Lend-Lease guns (42MB). The Gun Control Act of 1968 made it no longer optional for a manufacturer to put serial numbers on their long guns, and all Mossberg firearms made after 1968 will bear a serial number on the left rear of the receiver.
