Even if the AK isn't the overall "winner" in regards to these mud tests, she's definitely hands down the supreme victor in regards to cleaning afterwards.
Everthing is give and take with weapons design and the AK is defintiely designed to be resiliant in the field with minimal maintenance. This post mud test cleaning video demonstrates how successful the AK design is in that regard.
InRange is an online video program dedicated to the study of guns, shooting, gun culture, and history. We dispel the myths, promote the good stuff that hasn't gotten the attention it deserves.