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.
Out of all other products out there, these are the 4 best red dot optics for Benelli M4 & M2.
For a 12GA shotgun, you definitely need something rock solid!
Let's check them out below...
4 Best Red Dot Optics For Benelli M4 & M2
Note: We recommend ONLY the most durable and recoil resistant optics for the Benelli M4.
For Buckshot & Slug Use
Trijicon RMR Type 2 - Best Overall
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 getting on target fast and accurate with slugs and buckshots up to 20+ yards assuming tight pellet pattern ammo is used.
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 here.
Handles Low Recoil and Heavy Recoil 12GA & Retains Zero.
Rifle Scopes Products including Top Brands like Vortex, Primary Arms, Leupold, Burris and More! — 1,845 products / 3,387 models
from: OpticsPlanet, Inc
Aimpoint Micro - Best Durability
Why we picked this - Aimpoint Micro is the world's toughest micro red dot sight made for battle rifles that endures rough environments including explosions. It works just like a Trijicon RMR but bigger and more protected.
Closed Emitter - Unlike the RMR with exposed emitter, 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!
Holosun HS507K X2 - Best For Value
Why The Holosun HE507K X2 - The Holosun 507K X2 is by far the best alternative to the Trijicon and saves you at least $200+, 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. 2X more battery life than the Trijicon RMR 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.
Burris FastFire 3 - Best Lightweight RDS
Why Buy The Fast Fire 3 - The super light weight Burris FastFire 3 provides a 12GA shotgun with fast target acquisition speed for anyone starting out new or experienced shooters.
Top Battery Access makes battery swap extremely easy without sight removal, and the automatic time-out feature after 8 hours helps battery last up to 5 years
Auto Brightness Control - The sight adjusts automatically to match the environmental conditions to provide a bright reticle 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.
Be aware of knockoffs copycats of this optic, make sure you click on our links below that takes you straight to the legitimate sellers storefront on Amazon or OpticsPlanet.
What To Look For In A Home Defense Shotgun Optic
Is an optic necessary on a home defense shotgun?
The Benelli M4 and M2 semi auto 12GA shotgun kicks shoots fast and kicks hard depend on the load. Mounting a red dot sight helps the shooter track the reticle during after each follow up shot.
It's not necessary to have an optic on a home defense shotgun, but it will help get on target faster if you train with it.
In fact, adding a weapon light on the Benelli is actually more important to see in the dark and protect your family.
Get Aftermarket Optic Mounts
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 specific mount that sits 100% cowitness with the iron sights.
Both systems work.
The Aimpoint Micro, Trijicon RMR/SRO and Holosun 507C are by far the best micro optics for the Benelli M4 and M2.