Out of all other products out there, these are the 5 best Benelli M4 red dot sights.

We have tested and evaluated many small size reflex sights on long guns and shotguns based on their durability, dot clarity, overall performance and value of money.

For a 12GA shotgun, you definitely need something rock solid!

Let's check them out below...

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Best Benelli M4 Red Dot Sights

Trijicon RMR Type 2 - Best Overall

benelli m4 with trijicon rmr

Handles Low Recoil and Heavy Recoil 12GA & Retains Zero.

Scalarworks SYNC RMR Mount (Buy This Here)

Why it's the best - The open emitter Trijicon RMR is the gold standard for micro red dot sights, and it still holds the crown for being the most durable and high performing reflex sights for pistols, rifles and shotguns.

Increased Slug Accuracy - 3.25 MOA dot size or higher are great for much accurate hit, and easier for the users to acquire the dot.

Super Low Profile - The shooter can quickly acquire the sight picture with comfortable cheek weld.

For slug/buckshot related zeroing questions, please check out how to zero a shotgun red dot on our site.


  • Battle proven durability
  • Small and non snag
  • Much tighter battery grip than GEN 1 models
  • Co witness with iron sights


  • Open emitter attracts debris easily
  • Sight removal required for battery swap

Trijicon SRO - Best Field Of View

trijicon sro benelli m4

Trijicon SRO features a large circular shaped field of view. It has the same RMR footprint to work with all existing Benelli M4 RMR optic mounts.

Large FOV - Enlarged field of view provides maximum situational awareness and brings the optic height slightly taller

Top Battery Access - Replace the battery from the top. This is a much better improvement than the original RMR design

Lock Out Mode - Red dot brightness automatically adjusts to the ambient light condition, or it can be locked in 

Aimpoint Micro - Best Durability

benelli m4 aimpoint micro

Why we picked this - Aimpoint Micro is the world's toughest micro red dot sight made for battle rifles that can endure rough environments including explosions. It works just like a Trijicon RMR but bigger and more protected.

Closed Emitter - Unlike an exposed emitter red dot, the Aimpoint Micro is an enclosed system that protects internal from dirt, water, mud, sand and more.

Superior Durability - Built like a tank with forged 7075 T6 aluminum housing that protects internals and hold zero against sharp recoil impulse

Low Profile & Lightweight - The low profile design fits great on the M4, and its so light for a low drag and snag free shotgun setup

Use This On The Benelli M4 And Other Rifles You May Have!


  • Warfighter's choice
  • Fully enclosed emitter design
  • Works on 12 GA and other carbines
  • Tons of aftermarket mounts available


  • Pricey 

Holosun HS507C X2 - Best For Value

holosun 507c x2 on benelli m4

Why The Holosun HE507C X2 - The Holosun 507C X2 is by far the best alternative to the Trijicon RMR and saves you a lots of money for something else, and it performs just like an RMR.

2X More 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. Up to 100,000 hours

Uses RMR Footprint - No special adapter or milling required! Just use the same Trijicon RMR adaptor plate to mount the optic

Solar Power BackUp - Solar fail-safe power kicks in immediately when the battery dies, so the optic will always remain on.

At this price point, You'll save a ton of money and get a sight that is as good as the Trijicon RMR. Be sure to click the button below for the best deal.


  • Similar durability as Trijicon RMR
  • Side battery access tray
  • Same RMR footprint
  • Much more affordable
  • Works on 12 GA, carbines and pistols


  • Open emitter design

Burris FastFire 3 - Best Lightweight RDS

burris fastfire 3 reflex red dot sight

The super light weight Burris FastFire 3 provides the Benelli M4 shotgun with fast target acquisition speed without breaking the bank.

Top Battery Access - Swap battery battery easily like Trijicon SRO, without sight removal, and it lasts up to 5 years

Auto Brightness Control - Matching the light conditions to provide the appropriate reticle brightness for the shooter. Competition shooters never have to worry about the reticle being too bright or too dimmed while moving through stages

Durable & Affordable - The battery lasts as long as 4+ years and it's by far the most affordable open emitter reflex optic for pistol use.


  • Very small and affordable like the Vortex Venom
  • Picatinny rail mount included
  • Super lightweight for hunting and competition


  • Non duty durable
  • Can easily break when dropped on its lens

Benelli M4 Mounting Accessories

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You can mount the optic at about 1/3 cowitness height on the picatinny top rail or you can use the low profile Scalarworks SYNC RMR mount that sits 100% cowitness with the iron sights.

Both systems work.