Here are the 8 best Glock MOS red dot options.
One of my favorite is the Holosun 507C ACSS for close range shooting because the 250 MOA ring helps me quickly find the dot even if my sight picture is off center after each shot.
These red dot sights fit on optic ready Glock MOS right out of the box with good durability, reticle, battery life and weatherproof. I have purchased, fitted and shot these optics, and wrote down ones that work well in this guide.
Please check out more below:
Best Glock MOS Red Dot Options
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Holosun 507C X2 - Best Overall
Uses RMR Footprint - No special adapter or milling required! The same footprint as the Trijicon RMR
Bigger Buttons - Enlarged adjustment buttons for better reach for shooters with big fingers
Side Loading Battery - Access CR1632 battery from the side tray instead of the bottom. This eliminates the need to remove the sight for battery swap and re-zeroing
Near Infinite Battery life - The Shake Awake technology saves tons of battery life by deactivating the optic when at rest, then turns it back on upon movement. 2X more battery life than the Trijicon RMR up to 50,000 hours
Solar Power BackUp - Solar fail-safe power kicks in immediately when the battery dies, so the optic will always remain on.
Pros
- Uses RMR footprint
- Long battery life + motion sensor aviation + solar power
- No sight removal required for battery swap
Cons
- Open emitter design attracts debris
- Solar power doesn't work indoor
Holosun 507C ACSS - Faster To Acquire
The Holosun 507C ACSS is basically the same optic as the Holosun 507C X2, and it features the new ACSS vulcan reticle to help the shooter to find the reticle inside the optic's window.
The 250 MOA ring helps guide the eye back to the center.
Trijicon SRO - Best Large FOV
Why we picked this one - Trijicon SRO is by far the best Glock MOS sight that enables the shooter to effortlessly acquire the sight picture. This means less time spend looking for the reticle if it's lost in the FOV during follow up shots.
Better Follow Up - Increased sight acquisition speed without losing the dot inside the window.
Bigger Window - Re-acquire the sight picture faster after each follow-up shot even if the sight picture is slightly off center.
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Easier Battery Access - Load/Replace battery right from the top! No sight removal or re-zero required
Remembers Last Setting - It prevents accidental button adjustment under conceal carry clothing
Same RMR mounting footprint - Using the exact Trijicon RMR mounting footprint keeps everything compatible without having to buy special accessories.
Pros
- Bigger window for dot tracking
- Great Glock 17 red dot configuration
- Best RMR for Glock
- No sight removal required for battery swap
Cons
- Open emitter design attracts debris
- Lens frame durability not the same as RMR
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Holosun EPS Carry - Best Weatherproof
The Holosun EPS Carry is full weatherproof and no dirt or moisture will ever get inside the optic to cause malfunction. The mounting plate fits both front and rear recoil lugs and the EPS Carry fits right on the top.
Closed Emitter - Fully weatherproof against dirt, water and other debris
Side Battery Access - Insert the battery from the side without sight removal
Multiple Reticle Systems - 2 MOA, 6 MOA or mutli reticle system with 32 MOA ring (with solar failsafe). Sold separately
No Lens Distortion - The aspherical glass with zero distortion
Features:
- Magnification: 1X
- Reticle: 2 MOA, 6 MOA or MRS
- Turret Value: 1 MOA / Click
- Window Size: 0.58" X 0.77"
- Construction: 7075 T6 aluminum IPX8 rated
- Dimension: 1.62" X 1.07" X 0.95"
- Weight: 1 oz
- Battery Life: 50,000 hours
Pros
- Full weatherproof for carry
- Lock out mode built in
- No lens distortion
- Very long battery life
Cons
- Open emitter design attracts debris
Holosun 507K X2 - Best Subcompact
The Holosun 507K is one of the best Glock red dot for the micro compact handguns. The optic has everything the 507C has but reduced in overall size for conceal carry. Sub-compact Glock 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 Mil Spec aluminum body to endure rough handling in the field
Pros
- Same features as Holosun 507C but smaller body
- Very durable front lens for slide racking
- Slimmer width to fit on Glock slides
Cons
- Conversion mounting plate required
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Leupold DeltaPoint Pro - Best Lens Hood Protection
The DeltaPoint Pro is another best reflex sight for Glock MOS handguns. It has a slightly taller and wider lens than the Trijicon RMR, and it's one of Leupold's best products. It's also compatible for rifles, and shotguns.
New 6 MOA Available - 6 MOA is much easier to pick up, and great for shooters with astigmatism
Extra Housing Protection - The added lens hood protects the optic from receiving direct impact that increases durability and making it fail proof.
Larger Window Like SRO - Similar window size like the Trijicon SRO in a wide rectangle POV profile
Easier Battery Access - Load/Replace battery right from the top! doesn't require tool for sight removal in order to switch to a fresh CR2032 battery
Pros
- Big window as Trijicon SRO but wider
- Top loading battery design
- Additional lens hood protection
- 6 MOA now available for purchase
Cons
- Lower battery life
- Hard to see reticle when adjusting the brightness
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Holosun 509T - Best Protected Housing
Why Pick The HE509T - While the Aimpoint ACRO P1 costs over $600, the Holosun 509T is the best alternative. It's a fully enclosed emitter red dot sight with increased durability and reliability than open emitter sights.
Side Battery Access - Access the battery from the side without removing the sight off the slide or re-zeroing required.
Tighter Mount - Clamp mount offers unique mounting solution to ensure zero retention.
Fully Enclosed Body - Fully protected open reflex sight prevents dust, water moisture and other nasty stuff from getting into emitter projector screen.
Solar Backup - The sight's solar power will kick in after the battery dies. For 100K hours, you will be waiting for a long time to test out this feature.
Note: That this optic requires very special clamp based mounting plate. If your MOS handgun isn't compatible, please buy aftermarket mounting plates from various companies
Pros
- Closed emitter design blocks debris
- Titanium body for hard slide racking
- Motion sensor reticle activation
- Beefed up 508T
Cons
- Lower battery life
Burris FastFire 3 - Best For The Money
Why Buy The Fast Fire 3 - This super light weight Burris FastFire 3 provides a 9mm Glock pistol with pinpoint accuracy for anyone starting out new or experienced shooters.
Auto Brightness Control - The sight adjusts automatically to match the environmental conditions to provide a bright reticle for the shooter
Top Battery Access - Battery swap is extremely easy without sight removal. The automatic time-out feature after 8 hours helps save more battery juice
Auto Brightness Control - The sight adjusts automatically to match the environmental conditions to provide a bright reticle for the shooter
Durable & Affordable - The battery lasts as long as 4+ years and it's by far the most affordable open emitter reflex optic under $250
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Common FAQ
Glock MOS Slide Mounting Plate 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.
We in fact highly recommend the aftermarket DPP optic plate:
Large FOV - Better Dot Tracking
The bigger the window, the easier it is for the shooter to pick up the reticle and not get lost in the window trying to find the dot after each shot.
Dot Size Selections - 3 - 8 MOA
For close-range pistol shooting, 3 MOA or 8 MOA size dot are great because they are easy to pick up and the dot appears much rounder for shooters with astigmatism.
Long Battery Life - 30K+ or 100K+ Hours
Most pistol red dot sights can last up to 50,000 hrs. Long battery also eliminates the need to swap battery especially for RMR where the battery goes on the bottom. In another word, no sight removal is required.
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As the content creator of badassoptic.com, My background in the firearms industry and shooting sports gives me the experience to recommend tried and true products and keep away subpar ones.
