I would like to start first with the serial number.The letters MR in the middle of the serial number indicates that your browning shotgun was made in 2007.With that said,if you have a pump shotgun then you have a browning BPS.If you have a over/under shotgun then you have a browning citori.If you have a semi-auto shotgun then you have a browning gold model.
Your Browning gold fusion shotgun which was made from 2001-2007 will bring between 260-400 dollars for a shotgun showing between 60%-90% of its original finish and a good bore.
Depends on what application it was ported for and by what process.
A good shotgun.
How much is a Browning Sweet 16 gold trigger shotgun worth?
Visit Browning.com for details on the Gold Shotgun models
Are we talking about a auto-5 shotgun,or a BPS(browning pump shotgun),or a over-under shotgun(citori, or superposed)These answers would help me determine the value of your shotgun which was made in 1980.
Your serial number indicates that your Browning shotgun was made in the year 1970.
Your Browning auto-5 shotgun with the prefix of 70s to the serial number identifies that your shotgun was made in Belgium for Browning in the year 1970.
Your browning auto-5 shotgun was made by FN of belguim for browning in 1957.
Shotgun made by Browning.
This Shotgun was made by Stevens their model. 520. Made from 1930's to 1950'S Although the shotgun was Browning patent marked, it was not made by Browning.