The HK VP9 SK OR in .40 S&W is the subcompact optic-ready .40 S&W striker-fired HK, combining the VP9SK's charging supports and compact dimensions with a factory optic cut and .40 S&W chambering. Less commonly encountered than 9mm SK variants, it was produced for law enforcement agencies with .40 S&W requirements seeking a compact optic-ready option. Type: Pistol Action: Striker-Fired Caliber: .40 S&W Capacity: 10 Year introduced: 2020, Germany Weight: 22 oz Overall length: 6.61" Status: Active Intended use: carry, duty