Have a Gemtech Trinity 9mm suppressor that rattles . Took the 1/2x28 end mount off and it appears that there is a gap between, what appears to be a castle nut and the first baffle. Called Gemtech but they aren't open. Can I tjghten the nut or does it not move? Don't want to mess anything up but not sure what is going on . No baffle strike or damage to suppressor and did not have this problem last time I used it . Any help would be appreciated. Thanks. David in Thomasville GA.