The Glock MOS allows the shooter to mount the sight of their choice, easily and quickly using only a few tools. The versatility of the system makes changing optics easy. Switching from one sight to another is as simple as removing the old sight, removing and reinstalling the correct adapter plate, then mount the new sight.
The MOS is offered with a cover plate when no optic is mounted and four different plate options to comply with the specifications of some of the most trusted optic manufacturers in the industry.
Specifications of the Glock 19 Gen4 MOS do not vary from the Glock 19 Gen4 configuration.