i think that about sums it up right there. i had a great relationship with a girl for 7 years who was anti-gun. i eventually talked her into handling a gun once though. the important part was, she never tried to get me to give them up or prevent me from owning them or try to control me in any way. she would even buy me gift cards for trap shooting or to the local gun shops for my b-day or xmas.
we eventually parted ways over the fact that she changed her mind on having kids (she wanted them all the sudden one day) and i didn't.
we had very little in common and completely different interests but neither of us tried to control the other in regards to things we disagreed on. we would sometimes calmly debate them over a glass of wine or offer to involve the other but there was no pressure.
point is, you don't have to be 100% compatible with the person you're with, even politically. it can make for a dynamic, fun and educational relationship for the both of you. if you really like her, go for it! if she starts to get controlling about guns, or anything else for that matter, or starts laying down ultimatums, (it's the guns or me!") then it's time to throw in the towel.
regardless of the topic, if one person gets to trying to control the other, i'm outty.
Bobby