 the Springfield Armory echelons. I have just fallen in love with it. This 20 round mag and 17 round mags, adaptive grip texture, stretch cut here on the slide, flat trigger breaks right shy of five pounds with a very short reset. The Hellcat Rear Sight, a Tritium Front Dot 4.5 inch Barrel, ambidextrous controls with both the slide stop and mag Z release. It is such a nice pointing and shooting handgun. The package is different than any other Springfield Armory handgun out there. It was built from the ground up. It's a beautiful handgun.