So, I am a sucker for chasing exotics in this game (still haven't done the raid ones or a few others) so I decided to grind for Heir Apparent and it is a great exotic. It will shred both mobs and bosses alike and the shield it projects around you gives you a few more precious seconds in the fight. It chews through ammo mind you, so something like Actium War Rig is probably going to feature in a build to get the most from this weapon. You can't aim down the sights as the left trigger is for spin up, but you don't need to. It is a machine gun that will be hopeless in PvP due to having to spin up, but for the PvE folks amongst us, it's actually worth the grind. I'll be making an armor build for it next that has heavy ammo and machine gun mods in proliferation I guess.