Best to ask a gunsmith for assistance.
remove the buttplate screws, and the buttplate. In the large round hole in the stock is the stock bolt. That is unscrewed to remove the stock from the rifle.
Best left to a gunsmith
On line auctions, want ad, contact stock makers.
Best left to a gunsmith
Best left to a trained gunsmith
Remove the screws from the bottom of the stock on either side of the magazine well.
Best left to a gunsmith
Contact Browning, try e-gunparts.com, any of a dozen stock makers would probably make you one.
Best left to a gun smith.
Best left to a gunsmith
Best left to a Mauser trained gunsmith
Recommend you contact Browning at link below