One of these firearm options two barrels stacked vertically, one above the opposite. Firing is completed by means of separate triggers or a selector mechanism. An instance is a sporting clays firearm the place the consumer would possibly need to shortly choose between a extra open choke for shut targets and a tighter choke for distant targets.
The configuration supplies a transparent sight image, balanced weight distribution, and permits for fast follow-up pictures. Traditionally, it represents a refined design evolution, favored in aggressive taking pictures disciplines for its precision and reliability and looking, the place the consumer can benefit from a couple of choke for various vary pictures.