No serial number = no way to answer.
Go to Browning's site, Support, Date Your Shotgun.
It was made in 1981.
Impossible to answer without knowing which model.
With the serial number that you provided,if you have a Browning model auto-5 shotgun?Then this shotgun was made by FN of belguim for Browning in 1939.
You will have to call Browning.
Your browning shotgun was made in 1990.
this is a 1969 light twenty shotgun auto5man
The 2 letters in your serial number dates your shotgun to the year 2004.
Your shotgun was made in 1947 with the serial number you provided.