New Apex Trigger kit and HIVIZ H3 Tritium/Litepipe sights. Sights are much better than the Trijicon. Trigger is much improved over stock. Smoother, less stress on my arthritic finger. Love my S&W M&P Shield again! With the current economy and us having to put windows and doors on our house, this is more economical than buying a new Springfield. Maybe next year I can justify the cost of a new handgun.