First of all carrying a gun to protect yourself from homosexual advances is absurd. Anyone who knows the gay culture could tell you that decades of being shot at has produced a generation of bullet proof homosexuals many with the strength of several men.
They also like to travel in packs of up to 20 so a gun is of little protection. When I go to the park I usually wear a explosive vest and I've also undertaken the precaution of having my bottom sewn up.
Years ago while at the park I had a guy nod as if to say hi and although I was armed I wasn't sure whether or not to open fire. This got me looking into new technologies and I stumbled on the AF-400W which is a personal drone plane. For only 425 million per year the drone - equipped with Vista Gaydar Express Home Edition is capable of firing up to 24 short range missiles at any approaching homosexual within a 300 year radius.
Of course not everyone has 425 million dollars a year to spend or the luxury of being able to reroute their intestinal tract. For a lot less you can have your penis reshaped into a vagina which has been clinically proven to eliminate the threat of homosexual atack.