Smith & Wesson Adds 5.7x28mm Caliber to M&P Line

Smith & Wesson jumps into the 5.7x28mm market with a well-designed version of its M&P pistol:

https://www.handgunsmag.com/editorial/smith-wesson-57x28mm-mp/482643

FN 5.7×28mm Carbine & Handgun cartridge - Wikipedia

See also the PS-92 carbine ...
https://en.m.wikipedia.org/wiki/FN_5.7×28mm