Wichita sight issue

The Wichita sight on my 1911 will occasionally get frisky and self elevate by several (like 15) clicks.  After a couple of consecutive uncalled high shots, it becomes obvious that it's up to its mischievous ways and I reach for the screwdriver. Any suggestions for taming it?  It was installed 35 years ago in a low profile milled slot.  Does it use the standard Colt dovetail?  Perhaps a new sight is in order?

I found some info that suggests they were still in business but info wasn't new. It sounds like your little detent ball has gone AWOL. If your like most shooters you have several sights or parts there of laying around you might be able to steal from. If all else fails and your getting ready to order a new one because you can't find old parts then you can rough up the screw threads. If they are stripped that won't help. If they are just so old and smooth they are backing off you might get another 10 years out of it just by being mean to it.

Len

New owner of Wichita Arms is Tim McNally. You can contact him at mcnally2@ckt.net
Disclaimer - last time I communicated with Tim was about four years ago.
AP

Thanks.  I've reached out to Mr. McNally and I'll let you know if there's a response.

Mr. McNally replied that he has parts and sights available.  I'm going to see if a Bomar will fit the Wichita dovetail because I prefer the Bomar adjusting detents.