Alright, well I got a No. 4 MK I long branch recently (yes its sportered of course) but anyway naturally I've been playing around with it for the last few days, and I'm seriously annoyed at the fact that all I can do with the micrometer aperture sight is #### around with it and make it go up and down. So I decided to ask on here, what exactly to the numbers stamped on the adjustment refer to?
at the very top of the flip up part, MK 3 is stamped in it, if that helps.
at the very top of the flip up part, MK 3 is stamped in it, if that helps.


















































