Best Red Dot Sights For Glock MOS Handguns

Can you put a red dot on a Glock slide ? of course! and it's much easier & cheaper now with the new MOS slide.

In this buyer's guide, we share the best optics for Glock MOS handgun. Some of the top 4 are:

• Holosun 508T X2 or 507C  for full size Glocks
• Holosun 507K for best sub compact conceal carry Glocks
• Holosun 509T for best protected housing
• Trijicon SRO for the largest POV
  

We have tested a handful of sights on handguns and shotguns based on their durability, reticle, battery life and cost.

Don't waste money on a poor optic that will lose zero, get the ones that are already proven to work

Let's check them out...

Buy your first Glock MOS online here. If you don't have one.

Best Optics For Glock MOS [All Models]

Holosun HE508T X2 - Best Overall

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Trijicon SRO - Best Large FOV

Why we picked this one - Effortlessly and instantly acquire the red dot in the center of the lens with that enlarged window frame. This means less time spend looking for the reticle or get lost in the window during follow up shots.

Since the FNX 45 Tactical has a 1911 style grip angle, the SRO makes sight picture acquisition way easier. You can also experiment with different size grip backstraps to slightly change the grip angle that's best for you.

Better Follow Up - Increased sight acquisition speed including consistent fast follow-up shots without losing the dot inside the window.

Bigger Window  - Get on target fast, and reacquire the sight picture fast after follow-up shots even if the sight picture is slightly off center. When you pick this up the first time you just wish you had it sooner.

Easier Battery Access - Load/Replace battery right from the top! No sight removal or re-zero required

Remembers Last Setting - Last reticle brightness setting is saved to prevent accidental button adjustment

Same RMR mounting footprint - Using the exact Trijicon RMR mounting footprint keeps everything compatible without having to buy special accessories.

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Holosun 507K X2 - Best For Sub Compact Guns

Why The HE507K - Made specifically for conceal carry users. The optic has everything the 507C has but reduced in overall size for conceal carry. Sub-compact Glock 43X and Glock 48 users will love this. 

Easier Battery Access - Replaces the battery right from the SIDE without sight removal or re-zeroing.

Super Light Weight - Weighing only 1 oz, which is about 50% lighter than the HE407C. For conceal carry people, shaving down any weight is a plus.

Snag free holster draw performance - The NEW Holosun 507K 's rugged exterior housing withstands wear against clothing and provides snag-free draw out of IWB or OWB holsters.

Remembers Last Setting - Last reticle brightness setting is saved to prevent accidental button adjustment while carrying under tight clothing

Saves More Battery - The ShakeAwake technology instantly activates the reticle upon sensing motion & deactivates when sitting in idle to save more battery juice.

Built Like A Tank - Made with 7075 T6 aluminum that matches mil-spec level quality to endure rough handling in the field

Also check out the similar model Trijicon RMRcc

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Holosun 509T - Best Protected Housing

Why Pick The HE509T - While the Aimpoint ACRO P1 costs over $600, the HE509T is the best alternative, and it's just as durable and packed with newer technology to keep the sight working longer.

Just like the HE508T model, the 509T is a fully enclosed unit for increased durability and reliability. 

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Brownells

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If you didn't find what you're looking for, there are other high-end pistol red dot sights available on our site.

Common FAQ

Glock MOS Mounting Plates Compatibility

The Glock MOS adapters include Set 01, and Set 02.

Set 01 fits Glocks with the slide width about 1 inch. Set 02 fits Glock slide width about 1.12 inch.

The adapter plates are for

• Trijicon
• Docter
• Meopta
• Insight
• C-More
• Leupold

Please check out Glock's official website for more info.

What To Look For In A Red Dot For Glock MOS

Glock pistols are reliable and fun to shoot when you mount a reflex sight to it, it helps you shoot faster and aim better only if you practice a lot with it.

It's a double edge sword where it can help you or it can totally slow you down.

Field Of View - Larger Window, Better Dot Tracking

The lens size of the micro red dot is important for picking up the dot fast, and also be able to track the dot on follow up shots.

The bigger the window, so it's subjectively easier to shoot with a faster timer with it, and it's the most important spec that helps shooter solve the sight picture inconsistency problem.

Dot Size Selections - 2 - 8 MOA

For close-range pistol shooting, 2 MOA to 8 MOA size dot is great because they cover a wide area of a target, which means faster sight picture acquisition and better shot placements.

This is useful for competition type of shooting when using a full-size Glock like the 34, 35 and 17L. For defensive shooting, aiming with a dot isn't really necessary because generally, shit happens within 2-8 feet away, point and shoot will be just enough.

1 MOA is generally optimized for precision long-range shooting using a rifle for its refined dot that covers 1" diameter at 100 yards.

Long Battery Life - 30K+ or 100K+ Hours

The industry standard for a micro red dot sight is about 2 years using just 1 CR2032 battery. It varies from optic to optic, based on adjustable brightness settings and the ones with advanced power circuits that extend the battery life even up to 10 years like the Holosun 507C, 407C, and HE508T.

Having a long battery life is always good for a pistol mounted red dot sight. It's always annoying when the red dot optic goes dead when you're ready to shoot or during your range session.

When you have something that lasts extremely long without a battery swap, it gives you the confidence and peace of mind every time you pick it up, you know it works.

Another great feature you should be looking for is the top-loading battery access, which eliminates the need to remove the optic for a battery change, and the need to re-zero your dot.

This is the exact reason why the NEW Trijicon SRO and Leupold DeltaPoint Pro are so much better than the original RMR when it comes to battery compartment access.

Durability - Survives Repeated Recoil & Shock

For defensive handgun shooters... There is a higher chance that you will rack the slide against the red dot one-hand on something like a table, hard edges, belt...etc

Yes, you can do that ONLY if the optic frame is strong enough!

Currently, Trijicon RMR, Holosun 507C, and HE508T can deliver that performance without breaking or lose zero, due to their rugged frame body made with 7075 T6 forged aluminum and Grade 5 Titanium (HE508T).

Tips If You Can't Easily Find The Dot

Before we discuss some optic equipped Glock shooting tips, let's briefly cover what are some of the negatives of using a red dot on pistols.

The biggest issue: Sight picture & dot alignment inconsistency. Hard to find the dot OR Track the dot

Optic pistol shooters have always had love and hate relationships with slide mounted red dot sights, where it doesn't matter how much you practice the draw you will always tend to miss the dot or have to find it, even if you're just a hair off.

Tip 1: Use a bigger window optic for better dot acquisition and tracking

Tip 2: Experiment with a different size backstrap to alter your grip angle, which allows better and sight alignment

Tip 3: Practice, Practice, and Practice