Customize your frame size
Every GLOCK Gen4 pistol model allows the user to change the circumference of the grip to fit the individual hand size and comes with two sizes of backstraps in two different shapes. The backstraps are easily changed and secured to the frame with a single pin offering the following options: a short frame (SF) version, a medium (M) and a large (L) version.
The medium and the large version can be chosen with or without beaver tail, the beaver tail backstraps keeping large hands clear of the slide.
The short frame (SF) version without any backstrap mounted still remains a complete fully functional frame. Its dimensions are smaller than previous generations.