Loaded chamber indicator
Customize the frame of GLOCK Gen4 models
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 beavertail, the beavertail backstraps keeping large hands clear of the slide.
The short frame (SF) version without any backstraps mounted still remains a complete fully functional frame. Its dimensions are smaller than previous generations.
How to install the backstrap of a GLOCK Gen4 pistol:
GLOCK Gen4 pistol models are available in caliber 9mm Luger, 40 S&W, 10mm Auto, 45 Auto and 357 SIG and different sizes