Rounded eyepiece M2?

[jojoman2]

Anyone have experience with one of these on a standard M2? I'm guessing it's an upgrade. Can you only upgrade the eyepiece and not the entire VF RF system? I like the idea of an M2 with an enhanced eyepiece, but I'd rather not have an M2 with an M6 finder... Thoughts?

 

[sanmich]

do you mean the barrel shaped mask in the VF?
that's a small piece that can be installed instead of the rectangular one.

 

[jojoman2]

Yes that's exactly what I wanted to know. It's just a mask that can be replaced so none of the glass is changed?