I bought a BAR awhile back that had a 2" blister on one side of the buttstock and 2 cracks in the finish running the length of the stock on the other. The forearm was fine. I stripped it, masked off the checkering, and used a spray on gloss polyurethane and gave it several coats. After it was dry I went over it with some automotive polishing compound until it came close to matching the forearm. I then used a little Tru-Oil on the checkering. It looks pretty good, not perfect, but pretty good.