Probably not, the religious seem quite inclined to use these things. However, depending upon where you live people would be ok with you keeping a gun at home. Here in the UK people can't do that, (without specific licences), but in the vastly religious nation known as USA people owning guns is commonplace - hell, the right to do so is part of the constitution.
Guns can be used for many things: They can be used to fight wars, to hunt animals, to start swimming races, to have fun at amusement arcades or to hold up banks or murder people. If you decide not to make anything on the basis that it can be used for bad reasons this would be a pretty empty planet.
What about bombs?