The Ruger LCR in 9mm uses full-moon clips to headspace the rimless 9mm cartridge in the LCR cylinder. The 9mm chambering allows a shooter who carries a 9mm semi-automatic to use the same ammunition in their backup revolver — simplifying logistics. The weight and dimensions are essentially identical to the .38 Special +P LCR. Type: Revolver Action: Double-Action Caliber: 9mm Capacity: 5 Year introduced: 2014, USA Weight: 17.2 oz Overall length: 6.5" Status: Active Intended use: concealed_carry, self_defense, backup