The 5.7x28mm cartridge, also called the FN 5.7x28mm or the FN 5.7x28mm NATO, seems more popular than ever, largely due to the introduction of modern handguns such as the FN FiveSeveN and Ruger-5.7. We’ve been interested in the round for a while, reviewing the FiveSeveN in the November 2011 issue (versus the 22 Magnum KelTec PMR-30) and the December 2014 issue (versus the Rock Island Armory Micro Mag Standard 51687 22 TCM) and the Ruger-5.7 in the October 2020 issue (versus the Rock Island Armory TCM044816 22 TCM and the KelTec PMR-30 PMR30BBLK 22 WMR). We also covered the FN PS90 chambered in the round (January 2018) and the 57Center AR57 PDW 5.7x28mm Upper in the March 2011 issue. It seems 5.7x28mm firearms are more affordable and more useful than ever before.
