Barrel Selector: Quite a few one-set off split-steps Possess a selector letting you to choose which barrel fires 1st, which could issue if the barrels have unique chokes. Quite a few can be found on the safety, some take the method of a button on or powering the bring about. https://donovanehizz.laowaiblog.com/28926822/5-easy-facts-about-release-shotgun-knobs-described