In early 1990, Glock offered the Model 20, which is a 10mm pistol, light enough to be carried with ease. The Glock 20 is a carriable and very controllable close-shooting handgun, making it the first really practical 10 mm combat pistol. It is slightly larger than its predecessor 9 mm Model 17. Operating Glock 20 is very simple to handle and not a heavy pistol. Although the Glock 20 might not be the most popular choice, it is certainly one of the most powerful ones. The gun's combination of magazine capacity and power makes it a very intimidating gun.