WON Landing Page OCT 2022

How to Mount a Pistol Red Dot

Women’s Outdoor News and Avery Skipalis present an article on how to mount a pistol red dot. Mounting a pistol red dot using the GLOCK MOS line of pistols alleviates a lot of stress.

Sponsored by GLOCK

GLOCK has made mounting a red dot on your pistol much easier with their MOS series of pistols. The GLOCK MOS series includes four mounting plates to accommodate a variety of optics. Mounting a pistol red dot can be relatively easy when using the appropriate tools and hardware. Below, I’ll explain what equipment is needed, and how to mount the red dot to the pistol. 

Items & tools to Mount Red Dot

Required Equipment: 

  • Pistol 
  • Optic
  • Lint-free cloth
  • Torque wrench with appropriate Torx bits
  • Medium-strength thread locker
  • Correct size mounting screws

How to Mount a Pistol Red Dot

Before beginning this task, perform a safety check on the pistol to ensure it is properly cleared out.

Next, field strip the firearm and set everything but the slide off to the side out of the way. 

Remove the GLOCK MOS factory-installed cover plate using a T-10 Torx bit. 

Removing the adapter plate

Once the cover plate has been removed, clean the mounting area with a lint-free cloth to ensure that it is debris-free. 

GLOCK 19 MOS with adapter plates and Holosun 507C

Next, select the correct adapter plate for the optic’s footprint. Refer to the mounting plate kit instructions for compatible red dots and their corresponding mounting plates. 

GLOCK 19 MOS slide with adapter plate and Holosun 507C mount a pistol red dot

Perform a test fit before mounting the plate to the slide. Test fit the optic and the screws to confirm that they do not protrude from the bottom of the mounting plate. 

After confirming proper fit, place the mounting plate on the slide with the marking side up. 

Install the screws and torque to 13.3 in-lbs mount a pistol red dot

Apply medium-strength thread locker to the two small screws included in the mounting plate kit. Install the screws and torque to 13.3 in-lbs. 

It’s time to mount the red dot to the plate according to the optic manufacturer’s instructions. 

GLOCK 19 MOS slide with Holosun 507C mounted mount a pistol red dot

As a reminder, use only medium strength thread locker and torque to specifications and let the tread locker cure. Then reassemble the firearm; you are ready to hit the range. Additionally, witness marks can be applied to serve as an instant visual confirmation that the fasteners are not coming loose.    

Skip’s Takeaway

There are many benefits to adding a red dot to a pistol. Hopefully this simplified process will help get you back out on the shooting range in no time. For further information, be sure to check out this previous post, which goes into more depth on this subject.

  • About Avery Skipalis

    Avery Skipalis is the owner of Skip’s Tactical Solutions, an organization that focuses on empowering women, men and children to make sure that no one else becomes a victim. She gained her firearms experience from the military where she’s been a military firearms instructor for 10.5 years. She’s also a certified NRA rifle and pistol instructor and Glock Advanced Armorer since 2015. She’s attended Sig Sauer Academy, FNH, Special Operations Command Armorers courses as well as multiple Advanced Shooting Schools across the United States. She resides in Florida with her husband and 2 kids. She’s currently serving in the United States Air Force and loves sharing her passion with others. She thinks it’s important that women also feel like they’re in control of their own safety.


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