So what, in your opinion is the best setup for the Peacekeeper? I use it with Dual Mags and Silencer because it has really good Iron Sights. My choice of perks are Ghost, Scavenger and Dexterity with 2 Concussions.
"You must be the change you wish to see in the world" - Gandhi
That gun is awesome vanilla or with quickdraw. It's main appeal is that it's an AR that doesn't need a stock. You also don't need optics because it's got awesome iron's that use a higher base zoom than the rest of the smg's, at the cost of having a slower draw speed. The irons are also, in my opinion, unimpaired by gunflash unlike most ARs.