The Salvo 12 is the first commercially-viable, modular, hearing safe shotgun silencer on the market. It was designed to operate with most pump action and semi automatic shotguns and almost all commercially available ammunition. At its full length of 12a ^2 the Salvo 12 brings sound down to an average of 136.8 dB at the muzzle with #7 shot. Configurable to 6a ^2, 8a ^2, 10a ^2, and 12a ^2 lengths making it possible for the end user to optimize the weight and length of their Salvo 12 for sporting clay, waterfowl, turkey hunting, home defense, and many other applications based on their preferences. *Do not use steel shot with the Beretta Optima Modified, Improved Modified, Mfg: Silencerco