Had the same issue with my sbt. When I got it, I noticed the forend was a bit loose so I added a felt sticky dot that took care of it for a few months. Last summer I noted that it was getting sloppy again and I assumed it was just the felt compressing. Then one day a couple months back, after shooting, I was removing the forend to put the gun back into its case and the front screw fell out into my hand
. Being conditioned to keeping screw drivers at least 10 feet away from a Parker, it never crossed my mind to check the screws! Needless to say, I broke conditioning and now it's nice and snug.
Bruce