Best left to a gunsmith
Contact Browning.
You will need professional assistance from a stock maker.
stock is standard american walnut, no stain.
need to replace gun stock
Best left to a gunsmith with the proper tools.
Impossible to answer on the internet without detailed pictures.
Must be examined to be sure.
I would like to start out with I have never seen a Browning serial number as described by you.Are we sure that you have a Browning 16ga shotgun,or another made shotgun that may have used Browning,s patent?I must admit that I have never seen a straight stocked Browning shotgun or heard of one in my many years of collecting firearms.
Shimming to change the comb is tricky business. Recommend you contact the Browning Service center for advise. Use the link below for your convenience.
Try Mid West Gun Works
according to Browning Service and a local gunsmith - YES