Weaver No-Gunsmith Converta Shotgun Mount (Mossberg 500/835 12 Gauge Only) Made of the highest quality materials Hunting scopes mounts Another quality Bushnell product Weaver Shotgun "No Gunsmithing Converta Mount Multi slot base allows you to mount a variety of optics including scopes, red dots, lasers while obtaining the optimum eye relief Low profile, form fitting design allows you to shoot in your natural position without "peeking" Strong and lightweight Made of tough polymer composite material that will operate in temperatures of -40F to 150F