Tim, the LCP II is the 2nd generation upgraded model. The new Ruger LCP II was widened to give a more comfortable grip for larger-handed shooters, and the slide grew to accommodate forward serrations and taller sights.The biggest difference in LCP vs the LCP II though is the trigger. Gone is the long and heavy revolver-like pull of the LCP original. That has been replaced with some slack followed by an actual break instead of mush-to-click. There is actual reset now too without having to extend the trigger all the way out. Details here : --- ammoland.com/2016/10/ruger-lcp-ii-pistol-vs-ruger-lcp/#axzz6INzWXWfs

the LCPII is the upgraded version the biggest difference is a much better trigger