G18 – Built-in compensator for more control in burst fire
The GLOCK G18C comes with compensator slots in the barrel and slide. This should afford the shooter more control to the rapid-firing. With an external fire selector at the rear of the slide you can switch from semi-automatic to full-automatic firing mode.
It comes with an extended 19 round magazine and can provide greater firepower with the optional 33-round magazine. The rate of fire in full-automatic-mode is approximately 20 rounds per second.
With the frame size of the original model G17 the G18C provides the user stable shooting properties.