The Browning light 20 which was introduced in 1958 is selling for between 460-650 dollars for a shotgun with between 60%-90% original condition and a good bore.
300-600 USD.
1949.
100-450 or more depending on specifics
You will need to include the model number and the serial number to give you a answer to your question.
50-500 usd
450-600 dollars,depending on condition,and a decent bore.
Please go to the following link: http://wiki.answers.com/Q/What_is_the_value_of_a_Browning_Sweet_Sixteen
You need to contact a professional who deals exclusivley with Brownings. What you describe, if done by Browning, was a custom order and it's value could be more than a small nation's GDP.
Your Browning A 500 shotgun which was made in the year 1987 will bring between 275-395 dollars depending on the overall condition of the shotgun.I am not sure what the letters MC mean.
You will have to call Browning with the serial number to find out.
100-500 USD or so
100-1000 usd