Are you refering to the action screw or the swivel stud? If the swivel stud is the problem you can easily repair that yourself. Get some two part epoxy and glue the sucker in. If it's the front action screw I don't have a clue. Sounds a little bizzare to me, I can't imagine the swivel stud coming out. I have two Harris pods and never had a problem like that. It might be the way you are mounting the bipods that's causing the problem, just an uneducated guess.

Rem. 222