I have an unfired Beretta M9 that I was changing lasergrip batteries in. The upper grip screws are a tight fit, and the head of one broke off. Since it is in pristine condition, I'd prefer to keep it that way. Any solution in mind that will remove the screw without removing the bushing as it is staked in rather well? It is not loose enough to superglue an item to the protruding top of screw and twist out. This is apparently a common problem.