What is MOS
GLOCK Modular Optic System makes it easier to mount optic sights on your GLOCK pistols. Optic sights are popular in competitive shooting and are becoming increasingly more popular for home defense and target shooting.
The MOS system allows you to add additional tall iron sights, so you have a backup in case the optics fail.
Faster target transition
Quicker sight acquisition of your target
Improved accuracy at both long and short range
What’s the Difference Between Reflex Optics (MOS) and Standard Iron Sights?
With Reflex Optics (MOS), you look through the reticle and focus on your target with the dot aligned to the target.
With standard iron sights, you align the front and rear sights with a hard focus on the front sight.
What is the Importance of Dot Size?
Large dots are easier to see in bright light and close range, while smaller dots are better for low light and longer distance targets.