Wow, had not seen a camo-painted smooth-finish K-pot in decades--that's a trip down memory lane. As is the AN/PVS, too.
The AN/PVS-4 felt big and clunky even when mounted to a M60.
To keep subject, I understand that some want a carry handle mounted scope either because that is what they have or they want something retro. Definitely stick with the smallest scopes possible when doing this .