saying that the wrath of khan wasn't the best star trek movie will get you shot in some places. Those places would be Star Trek conventions, and the pistols they would shoot would be plastic replicas of phasers, but maybe they'd get lucky and the sounds they made would hurt your ears.
Fake? When I went to Sci-Fi conventions I always carried a real gun, disguised as a fake gun. A little contact cement on the cut in the "peace" knot and I'm not worried. Besides, I never went to a Star Trek only convention.