I can appreciate the design but Predpistol isn't my jam. I don't like when Predators' weaponry begins to resemble generic commonplace Earth weaponry too much. For the same reason I don't like the idea of Predator using a sword-like weapon. Predator gun's place is on his shoulder, he can control it giving mental commands, that's what makes it cool and unique, he should never just hold it in his hands.
IMO