Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value. Recommend taking it to a gun shop for appraisal.
No such model name in the Browning line.
100-1000 USD
65-550 usd
100-2000 usd
10-400 usd
Anywhere from $350-$1400.
To determine the exact value of a Browning automatic 20 gauge shotgun made in Belgium, a couple factors would need to be taken into consideration. Some of these things are the age and condition of the shotgun.
50-500 uSD
100-1000 depending on specifics
90-550 usd
100-300 USD
Based on description 100-500