Check the receiver.
PZ is 1981
With the serial number that provided,your Browning model BAR was produced in the year 1970.
This would be a Browning BAR semi-auto rifle
your browning bar was made in 1976.
The M69 in the serial number dates your browning BAR to the year 1969.
The letters PN that are found in the middle of your serial number indicate that your Browning BAR was made in the year 1989.
The Suffix of M8 to the serial number dates your Browning BAR to the year 1968.
You will have to call Browning to find out.
The 2 letters in your serial number give it away.Your Browning BAR was made in the year 1985.
The suffix of M71 was assigned to the Browning model BAR(Browning semi-auto rifle) which was made in the year 1971 in Belgium for Browning.
Your browning BAR which was made in 1981 is currently valued at between 450-650 dollars depending on the overall condition of the firearm.
Serial number look up.