I think the degree to which this resembles a sexual confession is not entirely coincidental. Learned (two-syllable pronunciation) papers and studies exist on the sexuality of guns, focusing always on the rather obvious phallic resemblance of the hand-held gun and the male organ; comfortable grip, extension, ejection, consequences of improper use … the list goes on.
The gun-confiscation paranoid mind-set is seen in these studies as — what else? — castration fear. And there’s the unfailing potency of the gun as a substitute for the failing potency of, well, you know. As Gore Vidal said, you can always get your gun up.