Yesterday I went back to check my backsight and found it was walking away with some kids, so I chased it down and thought I’d averted the problem, but it turns out the eye piece out of the rotating plummet has been unscrewed (see image).
Long shot but wondering if anyone has a spare floating around as local dealer says its not available as a separate spare? Seems such a waste not to be able to use it on account of one part.
Best wishes finding the part; the AP41 is a nice piece of equipment.
Managed to find a dealer in a nearby country who had an old one to cannilbalise so hopefully I'll be away again. Rotating plummet so good for being able to check adjustment on the spot!