The 9mm was standard among NATO (and most militaries who weren't somehow in bed with the Soviet Union), it has lower recoil (which makes it easier to control), a higher magazine capacity, and single actions designs were at a point where they were considered outdated.
the 1911 was retired and replaced by the 9mm Beretta pistol. Some say the 45 might have a come back because the 9mm can't do the job of a 45 cal. round.............
There is no such thing as a "9mm Beretta" cartridge. Beretta firearms were manufactured in 9x19mm (also known as 9mm Parabellum or 9mm Luger), 9x17 (also known as the .380 ACP), and some models are made in 9x21 IMI for countries which prohibit civilians from owning firearms chambered in military calibres. The cartridge appropriate for your Beretta 9mm should be marked on the frame and slide.
Contact Beretta.
Companies that produce 9mm guns include: Beretta, Glock, Colt, Browning, Calico, Smith and Wesson, Ruger, Luger, and many, many more although these are the most well known companies.
9mm Parabellum
9mm Parabellum- often called 9mm Luger.
Check the Beretta website.
380 ACP or 9mm short or 9mm corto
No
Colt has never made a 9mm ruger combat commander
Beretta made a LOT of different 9mm pistols. However, if you are asking about the M9 pistol used by the US Army, it is about 8.5 inches long.
First it is Beretta, second, it is a magazine, not a clip. There are several different 9mm models made by Beretta- it will use the magazine made for that model.