Heizer PKO-45 Single Shot Handgun Pevely, MO – -(Ammoland.com)- Heizer Defense, known for their innovative line of powerful pocket pistols, is pleased to announce that the PKO-45 was recently included in American Rifleman’s Editor’s Picks for 2018. Heizer was honored to be included in the Editor’s Picks list for 2018. “To be recognized by a