Something I have that is similar is a .22 TCM bolt action rifle.
It uses the same high capacity magazines as their pistols.
(While not technically correct, it's basically like a 9mm case necked down to .22 caliber that shoots 40gr bullets around 2k fps out of the pistol and around 2700fps out of the rifle).
I'm guessing they could probably turn that same rifle into a 9mm variant with just a tiny change to the extractor/bolt and a different barrel.
The M22 TCM tactical takes the success and popularity of the 22 TCM cartridge and combines it with the M22 TCM bolt action rifle to create a small game hunter’s dream. Get the details here.
armscor.com
I have this one:
The M22 TCM BA rifle is a small game hunter's dream, capable of delivering a 40gn projectile over 2800 feet per second out of a 22.75" barrel.
armscor.com