Hickok45 is a popular YouTube channel, also appearing on Full 30, featuring videos about firearms. The videos are hosted by Greg Kinman, a retired middle-school English teacher from Tennessee. Hickok45, LLC is also a registered trademark owned by Kinman. Hickok45's videos demonstrate a wide variety of firearms, both historic and modern, and typically present an in-depth discussion of the history and functionality of each firearm. His early videos typically showed him shooting Old West weaponry and wearing cowboy outfits. Over time, he expanded his presentations to include a greater variety of weapons, while emphasizing safety. While most videos feature Greg, with his son John filming, John has occasionally appeared in videos as well.