HayesGreener
Ronin
The 40 mags are the same. 357 Sig is necked down 40 calYou've piqued my interest. I have absolutely zero experience with the .357 Sig round. I'd always heard that it was an easy conversion with the Glocks, but I didn't pay too much attention at the time. Would I need to use .357 Sig magazines, or will .357 Sig rounds load and chamber using .40 S&W magazines?