If you mean the Glock 25 or 28, ABOUT 25 meters, due to their subcompact nature. Neither is available for sale in the US to a private citizen, due to gun import laws.
depends what model but, glock 17 (standard size) would have a effective range of roughly 60 metres
50m
25m
@ 50m
50 meters. The maximum range is about 960 meters, but the maximum EFFECTIVE range is 50 meters.
50-60 meters
For a 9mm PISTOL- effective range is about 50 meters. Max range about 960.
25m
50 metres is going to be the given effective range of any pistol.
25-50 m
@ 50m
The effective range on this certain Glock is about 125 yards.