This AR-mount Konica Hexanon AR 52mm f/1.8 prime lens comes with its rear cap. There is a patch of some kind of stain or damage to the metal on its side (please see photos). There are also a few scuff marks and minor finish loss on the barrel's exterior. Its focus and aperture adjustments are both smooth. There is a tiny bit of fungus inside of it, but its glass is free of any haze or separation to its elements. There is no oil on its aperture blades.