GLOCK G19 Gen5 MOS with adapter plates
MOS Logo green white

MOS - MODULAR
OPTIC SYSTEM

MOS - MODULAR OPTIC SYSTEM

MOS - MODULAR OPTIC SYSTEM CONFIGURATION


GLOCK engineers have developed the Modular Optic System configuration to simplify mounting of popular optical sights. 

Optical sights improve the accuracy at both long and short range, it enables faster target transition and quicker sight acquisition of your target. The MOS Configuration is the best choice to hit your target.
GLOCK G23 Gen5 MOS with model

CHECK OUT THE LATEST ADDITIONS TO THE GLOCK MOS FAMILY

GLOCK 47 MOS

... in 9 mm Luger

Trusted by law enforcement officers and military personel, the caliber 9mm Luger is one of the prefered calibers for duty pistols. 

G47 MOS | Standard

GLOCK G20 Gen5 MOS und G21 Gen5 MOS

... in 10 mm Auto & 45 Auto

The 10 mm Auto caliber offers maximum ballistic performance and maximum penetrative power, the ultimate force.

45 Auto is an almost 100 years old caliber with outstanding precision and maximum release of energy.

G20 Gen5 MOS | Standard
G21 Gen5 MOS | Standard

 

What's the difference between reflex optics (MOS) and standard iron sights?

Optical sights: Within the reflex optics, you look through the reticle and focus on the target and alignment of the dot.

Standard sights: With standard iron sight shooting, you align the front and rear sight with a hard focus on the front sight.

Optical sights are popular in competitive shooting and are becoming increasingly popular for home defense and target shooters.
MOS difference

GLOCK OFFERS MOS PISTOL MODELS IN:


STANDARD MOS
GLOCK pistol models in standard MOS Configuration come with one numbered GLOCK MOS Adapter plates to simplify the mounting of popular optical sights.
SLIMLINE MOS
The Slimline MOS Pistol models have slide cuts designed for specific micro-optics and do not include adapter plates. 

GLOCK MOS ADAPTER
PLATE MARKINGS


For GLOCK pistols in MOS configuration
slide width 25,5 mm / 1.00 in.
*Standard configuration for pistol sets
ADAPTER
Docter, Meoptra, Insight, Vortex, Burris 01
Trijicon, Holosun (except 509), Ameriglo 02*
C-More 03
Leupold, Eotech 04
For GLOCK pistols in MOS configuration slide
width 27,5 mm / 1.06 in and slide width 28,5 mm / 1.12 in.
*Standard configuration for pistol sets
ADAPTER
Docter, Meoptra, Insight, Vortex, Burris 05
Trijicon, Holosun (except 509), Ameriglo 06*
C-More 07
Leupold, Eotech 08

ONE GLOCK
MOS ADAPTER PLATE SET CONTAINS


  • One numbered GLOCK MOS Adapter Plate for use of optical system
  • 3 units 6 mm / 0,24 Inch (M3x6) Torx® screws, two screws to install the GLOCK MOS Adapter Plate and one replacement screw. All screws come with drop of glue applied.
  • See list above to choose correct plate (depending on slide widths and RDS manufacturers)

Make sure to use only these screws for fixing the adapter plates!

GLOCK MOS Adapter plates

HOW TO INSTALL YOUR OPTICAL SIGHT ON A GLOCK PISTOL IN MOS CONFIGURATION

Standard MOS Configuration
Installation of MOS

Step 1: Remove the GLOCK cover plate first.

Step 2: Select the appropriate GLOCK MOS Adapter plate, place it in the correct position and orientation.

Step 3:Tighten the 2 Torx®screws to fix the GLOCK MOS Adapter plate on your GLOCK MOS Pistol.

Step 4:Verify tightness of the screws, depending on ammunition and frequency of use. If a torque wrench is available, the optimum fit is 1.5 Nm / 13.3 lbf. inch. If you often need to screw on and unscrew, make sure to apply another drop of threadlocking type adhesive to the thread of the screws.  

Step 5:When the GLOCK MOS adapter plate is completely mounted on your GLOCK MOS Pistol, install the optical system according to the directions of the manufacturer.


Slimline MOS Configuration
Installation of Slimline MOS
Step 1:Remove the GLOCK cover plate first.

Step 2: To mount the MOS Sight on your slide, make sure to use a M4x8 mm flat-headed screw.

Step 3: Only shoot your GLOCK MOS Pistol with correctly installed GLOCK cover plate or optical system.

Warning: If the thread length of the screw exceeds 8 mm, it may cause damage to the weapon and/or may cause malfunction. GLOCK recommends a periodic check of cover plate or optic screws to ensure tightness.
GLOCK G48 MOS and G43X MOS on dark background

GET TO KNOW THE SLIMLINE MOS
MODELS G43X MOS AND G48 MOS

CHECK OUT THE SLIMLINE MOS MODELS G43X MOS AND G48 MOS