The performance center model of the shield plus has a nicer tuned trigger, better grip texture, fiber optic sights and a ported slide and barrel for better recoil management making it shoot like a bigger gun. Added a Pearce grip extension and Holosun 407Kx2 Green 6 MOA. Also comes with 1-10 round magazine, 1-13 round magazine, M&P folding knife, and M&P flashlight, two great holsters phalanx custom holster and QVC tactical holster. A complete and awesome concealed carry package! I bought it, added all the upgrades to it, Carried it for a while, 1 range day. No Trades. Cash only.