An explosive training device is described and which includes a main body defining an internal cavity, and wherein a plurality of elongated channels extend through the main body and communicate with the internal cavity; and an explosive charge is received within the cavity of the main body, and which, when detonated, produces sound and visibly discernible light, and wherein a preponderance of the visibly discernible light, and sound produced by the detonation of the explosive charge escapes from the main body through the plurality of elongated channels.