I too am the "Gun Guy"
I'm fortunate to work with an office of conservatives. 40+ employees, probably 35 of whom are openly and loudly conservative. Nearly all of them are aware of my "gun-ness", and it doesn't seem to bother any of them. The head of my HR department has asked me to take her and her husband out shooting .22's sometime. It probably has a lot to do with the fact that Olin/Winchester is the big company in my area, and that my boss is a Texan by birth and by nature. Further, downstate Illinois holds ZERO similarity to the hellspawns in Crook County. Round here, most people hunt and watch out for each other. Higher percentage of "sheepdog" personalities, and all that.
I do recognize that I'm pretty fortunate, however. This is a great environment to spread gunny love, and promote responsible gun ownership. I don't take it for granted, and I do my best to uphold the "Gun Guy" label with dignity and intelligence.