I like the Witness 10mm in stainless a bonus is you can put any kit on it from the now elusive 22lr up to 45acp.
http://www.impactguns.com/eaa-witness-10mm-steel-full-size-15-rd-mags-999220-741566107016.aspx

I thought about getting a x39 AR upper for my extra lower as a cheap plinking/training rifle.
https://sotaarms.com/component/jshopping/product/view/2/5?Itemid=0
https://sotaarms.com/component/jshopping/product/view/2/7?Itemid=0

JYD#176
"dein Gott schickte mich zu zerstören"
"Sic semper evello mortem Tyrannis"
"Sometimes the chance of a zombie outbreak is the only reason I need to make many of my life's Decisions." General Delivery