Not sure, but I think the VX2 might have the blackened edges on the lenses. Both it and the VX1 show to have the indexed lenses though.

I wanted to buy a VX2 in 3-9x40, but being as they’re discontinued couldn’t find one.
So I settled for a VX1 3-9x40 that I got on clearance for just under a hundred dollars to go on my Mark II .223. It was supposed to be 109 I think, but they knocked off another 10% or so because it was a display and I didn’t get the box and sticker, but did get the rubber bikini cover. I think it’ll work for me just fine.
Click adjustments is a nice upgrade over the friction adjustments on the older VX1 and VXII from the past. And I like it better that the VX-Freedom. And at the price I paid I’ve got no complaints.