Now I know these aren't in the game yet, but I've been fiddling around with them in the toolset and I wanted to make you aware of this: They are held in one hand and look redonk and because they are set under tridents.. which are one handed now. They are also now martial weapons unlike pistols which are exotic.
Why not make them a new exotic weapon with the two handed melee so you at rest carry them on your shoulder and use them in that fashion?
Since you're probably going to be fixing the haks, maybe consider doing that? ...otherwise they are going to look seriously silly.