I need some help from the experts. I know there is usually a gap between the front handguard and the gas cylinder and the handguard is a little loose. My rifle with the new production stock seems o have a larger gap than it should. the handguard moves around a lot. I tried 3 cylinder locks and they all stop about the same place. anybody have any suggestions as to fix this problem. This is what it looks like.
Attachment 692