Do you have dura-touch coating on that Browning?
Yes, that's the finish.
Unless you really want to tackle the job yourself otherwise Browning will either replace or refinish the stock for you no charge:
https://duratouchsupport.browning.com/
I did removed the duration touch finish once on a SX3 it's s a bit of a chore and I obtained some automotive paint thinner dunk it and soaked for hours and start scraping it off, your mileage may vary.
Thanks, very interesting.