<Tr> <Td> 19 - 7 </Td> <Td> </Td> <Td> Discontinue 6" barrel production; begin shipments in blue foam - filled plastic cases </Td> </Tr> <Tr> <Td> 19 - 7 </Td> <Td> </Td> <Td> Change to MIM thumbpiece and trigger, ship with trigger locks </Td> </Tr> <Tr> <Td> 19 - 8 </Td> <Td> 1998 </Td> <Td> Change frame design, eliminate cylinder stop stud, serrated tangs </Td> </Tr> <Tr> <Td> 19 - 8 </Td> <Td> 1998 </Td> <Td> Add internal lock, add MIM hammer w / floating firing pin </Td> </Tr>

Smith and wesson model 19 serial number database