9mm Luger is a rimless, tapered firearms cartridge. Originally designed by Austrian firearm designer Georg Luger in 1901, it is widely considered the most popular handgun and submachine gun cartridge due to its low cost and extensive availability.
Is there a difference between 9mm and 9mm Luger?
They are identical and different in name only. Despite what name these rounds carry, when you hear someone refer to a 9mm, they are most likely referring to a 9mm Luger or 9x19mm Parabellum which are one and the same cartridge.