The APX in .40 S&W applies the modular APX chassis to the larger cartridge. Magazine capacity is 15 rounds. The .40 S&W APX was developed alongside the 9mm to give agencies standardized on .40 S&W access to the APX platform without a caliber transition. Type: Pistol Action: Semi-Automatic Caliber: .40 S&W Capacity: 15 Year introduced: 2016, Italy Weight: 27.5 oz Overall length: 7.6" Status: Active Intended use: Law Enforcement, Service