this is assuming you don't have one already? Absolutely. Lovely sniper with pretty unique utility. Already done your weekly heroic? It's pretty awesome this week due to the Specialist modifier.
I did the weekly heroic three times not noticing the specialist modifier and wondering why my primary was doing such scubby damage.... I was trying out a new hand cannon so I didn't immediately realize that it was doing less damage than it should have been doing... I was sad to hear that Specialist doesn't just put a buff on special weapons but it puts a de-buff on primaries and heavies..