Changeout Heads - North American Mammal - Antelope   These new pronghorn antelope changeout heads are molded from Dennis Behn's 9AN series which features a unique horn notch with positive set eye sockets that will put the horns in the right spot every time. Simply lower the bone of the eye socket orbit, until it touches the form eye socket, and you are done. Our premium quality Antelope glass eyes work well for commercial and competition Antelope mounts. Note: Changeout heads are sold separately; not sold in exchange for the head sculpted for the form. View: Using Changeout Heads How To's