Some of his notable works include:
* The Winchester Book (1970)
* Colt Single Action Revolvers (1971)
* The Smith & Wesson Story (1977)
* The Ruger Handgun Story (1981)
* Gun Digest Book of Modern Handguns (1983)
* The Illustrated Encyclopedia of Firearms (1984)
* The Gun Digest Book of Long Range Shooting (1991)
* Great Guns of the West (1993)
* Standard Catalog of Smith & Wesson (2006)
* Winchester: An American Legend (2008)
Kuhnhausen was also a renowned artist, and his paintings and drawings of firearms have been exhibited in galleries around the world. He was inducted into the National Rifle Association's Hall of Fame in 1989.