Got bored during the COVID lock-down but couldn't shut off my imagination.
Previously I "Americanized" the rear sight windage knob on my Mini Uzi so I wouldn't have to use / keep track of the sight adustment key.
My new rear sight could be adjusted with thumb and forefinger but seemed too big to suit me.
I milled it down, leaving a raised rib that's easier to grab and less bulky than before.