Holy ****
At least, in PVE. It's probably no different in PVP fights, provided you got the accuracy. I'm convinced that it's the best weapon in the mode. The High End G36 is probably second, then again this is a bit biased, as I've only used those two. However, I've had successful solo extractions multiple times now with the combo.
Edit: Forgot to add a tidbit about the Boss fights with it: you'll enjoy how easy it is to gain survival caches now.![]()