Not really a why to it. Just like to tinker & didn't know if anyone had tried any type of conversion. I know the 40.. can convert to 10mm so I didn't know if the 9s could.
I know the 40.. can convert to 10mm so I didn't know if the 9s could.
You probably know this but one that you can do that with is a 1911. A 9mm 1911 can be converted, most of the time, to 38 Super. But that's because the 9mm mags are the same length as the 38super, but with a spacer down the back.