Someone had a post on fixing a crack in a stock using acraglass from Brownells. It works very well if the acraglass is heated with a (paint stripper) heat gun. It doesn't take long to heat the acraglass, it will turn to a water consistency. Then pour it into the crack. Dont clamp it too hard where it pushes all the glue out. Heating the acraglass will make it dry faster also. I hope this helps.