The Ruger-5.7 is a semi-automatic pistol introduced in December 2019 by Sturm, Ruger & Co. It is the first traditionally-styled semi-automatic pistol to be chambered for the 5.7ÃÂ28mm cartridge since the introduction of the Excel Arms MP-57 in 2012.
The Ruger-5.7 was introduced in December 2019 to be a more affordable alternative 5.7x28mm semi-automatic pistol compared to the FN Five-seven pistol (which had been the only other 5.7x28 pistol available to the civilian market for over 20 years). Since 2020, several different pistol designs from several different firearms manufacturers came into the market that expanded the 5.7x28mmâÂÂs growing popularity, including the PSA 5.7 Rock in January 2022, the S&W M&P 5.7 in January 2023, the TðSAà  PX-5.7 in January 2024 and the Kel-Tec PR57 in January 2025.