I have a Savage model 12 BVSS with a center feed magazine. Several months ago I bought a single shot adapter from Sharp Shooter Supply and have been happy with it. Well today I went shooting and took the action out of the stock to adjust the trigger and can't get the adapter to stay in place. It keeps falling down where the magazine use to be. I can't seem to figure it out, it's like nothing is holding the back of the adapter in place. Don

PS I have taken the action out of the stock several times and never had a problem.