Great quality except windage screws - XS Sight Systems Lever Rail Marlin Model 336 Ghost Ring Mount

Everything about the install was very easy, the included threadlocker was a nice touch. This thing is A+ quality and the fit and finish is superb. Once everything was installed though, I wanted to change the aperture and adjust windage so I unscrewed the screws in the rear peep to make such adjustment. I then spent 2 hours trying to get the screws back in. I tried everything but they would not fit. I emailed XS though and they send me a new rear assembly ($70 value!) for free with no questions asked. Great work by them. I still had a hunting trip coming up and the new sight would not arrive in time so i went to Ace hardware and picked up replacement screws. For those curious, I bought socket screws with thread pitch of 4mm, home depot did not carry them. They screwed right in and made for a successful hunt.