S&W will be selling the S&W Model 310 NightGuard that chambers .40 S&W and its’ parent cartridge 10mm Auto. Because these are rimless cartridges moon clips will be needed to be used to hold the cartridges together.
The Smith & Wesson Model 310 Night Guard is a personal defense and conceal permit carry handgun. It features a single or double action trigger, with a scandium alloy frame, stainless steel cylinder, and a custom compac synthetic grip. It has a matte black finish, large frame, exposed hammer, and a 6-round capacity that can hold individual or moon clips. The moon clips allow the user to load and unload the 6-rounds all at the same time.