MVA Sharps mid range sight ?

[chaneylake]

ok, I removed entire sight from rifle, laid down a large piece of clean white paper and removed eye disc from sight, nothing fell out and while looking thru magnifying glass stuck a large sowing needle into threaded hole to check on washer that I assume is to be inside hole, aka no washer, and this is the first time the eye piece has been removed since Jim returned the sight to me.

is it possible for a plastic or synthetic type washer to break into and fall out will adjusting the sight?

I am liking the #10 brass washer idea