Update. Arken info replied and they suggest Vibra-Tite 122 or Vibra-tite VC-3. It is a threadlocker but is supposed to be flexible enough to loosen when needed.
And that might be a requirement on any scope that uses set screws for turret covers. Still liking my Vortex, I like how Arken is easier to adjust zero and zero stop. Just that set screw getting loose thing that has been a problem.
And that might be a requirement on any scope that uses set screws for turret covers. Still liking my Vortex, I like how Arken is easier to adjust zero and zero stop. Just that set screw getting loose thing that has been a problem.