Choosing the right speargun can feel complicated at first. There are different lengths, different hunting styles, and different power systems, and all of them can change how a gun feels in the water. But the decision usually gets much easier once you narrow it down to a few basics: where you hunt, what fish you are targeting, and how much range or maneuverability you really need. That matters because there’s no one perfect speargun for every kind of diving. A...