M&P Sport 2 from CG&P for 539. Shoot the crap out of it, add anything you want. Spend your money well on optics and lights that will last, the rest is ergonomic stuff. Figure out what you like and don't like. Sell the gun and the parts you don't want and then buy a Daniel Defense and put on...
Everybody knows the onion skin marble's aerodynamics and centrifugal trueness are far superior to the tiger eye giving it a distinct advantage in tactical scenarios. :fish2: