US Patent 10386139 Customizable firearm lower receiver

A customizable firearm lower receiver includes a lower receiver body having a forward end and a rearward end, the forward end having a first lateral sidewall and an opposing second lateral sidewall, with a forward end wall between the first lateral sidewall and the second lateral sidewall. The opposing lateral sidewalls at least partially surround a magazine well. A mounting surface is configured on the lower receiver body along one of the forward end wall, first lateral sidewall, and second lateral sidewall. A custom face is removably attachable to the mounting surface.