Designed to be big enough to easily and quickly release the bolt in the heat of competition but not be too big to get caught on things on a defensive tactical shotgun. You never want to run your shotgun dry during a match, but if you do, this part can help you get back into action as fast as possible.
Fits on Benelli and any other shotgun that has a similar bolt release button. Made of aircraft grade aluminum with mil spec hard anodizing. Drilling and tapping required.