gunvert
A person, who having previously been opposed to guns, is now fully supportive of the right to bear arms.
Neighbour 1: Oh my! Jack keeps an Uzi on his mantelpiece. I'm so surprised.
Neighbour 2: Oh yeah. Since his house got burgled, he's a total gunvert.
Neighbour 2: Oh yeah. Since his house got burgled, he's a total gunvert.