The 2 letters found in the middle of your serial number indicate that your Browning hi-power was made in the year 2001.
This is a 9mm Hi-power manufactured in 2001 (M=0 & Z=1). You can go to the Browning website and in the Support area find a link to "Date Your Firearm".
1998
You must call Browning.
Your browning high power was produced in 1980.
The 2 letters in the middle of your browning hi-power indicate that it was made in the year 1990.
Your browning hi-power was made by F N in belguim for browning in 1968.
The letters PT in the middle of your serial number indicates that your Browning Hi-power was produced in the year 1986.
1993
With the serial number that you provided,your Browning Hi-power was produced in the year 1968.
Could it be that your browning hi-power is marked 70C19171? If it is then it was made in 1970.
Proofhouse.com has Browning sn info.
The RN in the middle of your serial number indicates that your Browning Hi-power was made in the year 1997.The Browning Hi-power is produced by FN in belguim.