Byrna Technologies Inc. is a Massachusetts based company that draws on a long history of excellence in non-lethal weapons manufacturing locally and in the surrounding area. The Byrna HD (Home Defense) is the best-in-class CO2 powered hand held personal security device. The Byrna HD can effectively Deter, Disorient, and Disarm would-be attackers at standoff distances up to 60 feet. The compact design of the Byrna HD is ideal for concealed-carry and can be taken virtually anywhere.