Thank you all for the advise and help I decided to go with the loc-tite, see how that works.

painter 777 went to the range with a friend once with an M1icon Garand. Shot a couple of clips sat down to take a turn and found I was having trouble finding the front sight in the peep. sat there for 5 minutes rubbing my eyes blinking, to no avail. Finally my friend notices that the front sight is not on the gas cylinder found it under the table 2 minutes later.