Buttstroke
A buttstroke or butt-stroking is the act of striking someone with the buttstock of a long gun, and is one of the most common types of the use of firearms as blunt weapons. Buttstroking typically involves a longitudinal smash from the flat end of the buttstock into the opponent's head (typically the face) or upper body, in the fashion of a battering ram, although it can also involve holding the gun back-to-front and swinging it like a club, and some buttstocks are even intentionally made with wedge-shaped edges to concentrate force and make impacts resemble more like that of a splitting maul.