The Sig M18 is already a modern classic…
Like all the guns in the Sig Sauer P320 line and it’s bigger brother the M17 it’s a tough, reliable, and accurate handgun…
On top of that, it does come optics ready…
But naturally, the big question that arises next is… What’s the best Sig M18 red dot sight?
That’s a great question, and I’ll be answering it today by giving you my Top 6 list of the best red dot sights for the Sig M18…
In the end, you’ll have a solid understanding of some of the best pistol red dot sight on the market today…
And you should have all the information you need to determine which optic is going to work best for you…
Let’s get started!
Sig M18 Red Dot Sights – Top 6 List…
The best Sig M18 red dot sight is the Leupold Delta Point Pro. The Sig M18 was designed to work with the Delta Point Pro, and it features an optic cut specifically for the Delta Point Pro footprint. Aside from that, the Delta Point Pro is very durable, has a huge sight window, and features a 2.5 MOA reticle which is great for making fast and accurate shots…
Below I’ll give you more detail explaining why I think the Leapold Delta Point Pro is the best red dot for the Sig M18…
And I’ll also share with you 4 other amazing optics that you should consider.
1. Leupold Delta Point Pro (Best Overall Pick!)
The best red dot sight for the Sig M18 has to be the Leupold Delta Point Pro…
It’s the best because the M18 was literally designed to work with the Delta Point Pro. In fact, the optic cut that comes standard on the M18 is for the delta point pro footprint, and that means it’ll be extremely easy to mount on your gun…
Now aside from the fact that the M18 was designed to mount it, the Delta Point Pro (DPP) is a fantastic red dot optic in it’s own right. For starters, it’s built like a tank and is extremely durable. It’s sight housing is constructed from high quality aluminum, and it’s actually waterproof in up to 33 feet of water…
You also get a 2.5 MOA dot reticle which I think is a great size because it’s easy for your eye to pick it up, but also small enough to make accurate shots out at distance…
The battery life that you get with the Delta Point Pro is around 300 hours, and to help extend that battery life, this sight comes with motion sensor technology which will turn the sight on when it senses any motion at all. It’s also important to note that the DPP has a top-loading battery compartment, so you won’t have to remove the optic from your gun just to replace your battery when it dies…
Aside from that, the sight window on the Delta Point Pro is huge, and the glass is very clear which gives you a great field of view through the optic when you’re looking to make quick and accurate shots…
So all in all, the Delta Point Pro has been one of the best pistol red dots for many years, and because the M18 was designed specifically to work with it, it’s a no-brainer to place it in the number 1 spot on my list!
| Feature Benefits | |
| Pro-Grade Red Dot Optical System | Light transmission for challenging lighting conditions, glare reduction, and high resolution and super clarity |
| Illuminated | The illuminated reticle helps to get on target faster in low-light situations. |
| Motion Sensor Technology | MST extends battery life as it deactivates reticles after 5 minutes of inactivity and reactivates on movement |
| Waterproof, Fogproof, & Shockproof | Using advanced gas and sealing methods to handle extreme temperatures, elevation changes, and shocks |
| Options | Choose between 2.5 or 6 MOA, FDE, and NV |
Click The Button Below To Learn More About The Leupold Delta Point Pro:
2. Trijicon RMR Type 2
The number 2 option on my list is the Trijicon RMR, and there are several reasons why it’s one of the best pistol red dots that you can get…
Firstly, with the RMR you can choose between multiple dot sizes depending on your preferences, including a 1 MOA dot, a 3.25 MOA dot, and a 6.5 MOA dot. Out of the three, my favorite is the 3.25 MOA dot because it think it’s easy for you eye to pick up and small enough to make very accurate shots (but the other options are also very good)…
Aside from that, the Trijicon RMR Type 2 features eight brightness settings, including two-night vision-compatible options. And it’s widely considered to be the most durable pistol red dot on the market due to it’s patented sight housing design and build quality. In fact, RMR actually stands for ‘Ruggedized Miniature Reflex’ sight, and over many years it has developed a reputation for living up to its name…
It’s also waterproof in up to 66 feet of water, and it gives you a whopping 5 years of battery life…
Why is the Trijicon RMR not Number 1 on the list?
Great question… The Trijicon RMR features the RMR footprint which normally is good thing because the RMR footprint is the most common footprint when it come to pistol red dot sights. However, like I mentioned earlier the Sig M18 is cut for the Delta Point Pro footprint…
That being said, it’s still very easy to get your RMR mounted onto the M18 with the use of an adapter plate (I recommend this one here)…
But all in all, the RMR is basically the king of all pistol red dots because of its reputation for reliability and durability, and it’s another amazing red dot that you should consider for your Sig M18.
| Feature Benefits | |
| Adjustable LED sight | Easy to control the illumination |
| Dual-Illuminated Option | Illuminates reticle in low-light conditions and automatically adjusts to light conditions |
| 1.0 MOA Dot | Allows accurate shooting at further distances |
| 3.25 MOA Dot | Small enough for accurate shooting, yet big enough for visibility |
| 6.5 MOA Dot | Easy visibility for close-quarter shooting or shooters with poor vision |
| Options | FDE, ODG, Gray |
Click The Button Below To Learn More About The Trijicon RMR Type 2:
3. Eotech EFLX
The Eotech EFLX is a relatively new pistol optic on the market, but it’s amazing little red dot that would pair really well with the Sig M18 for many reasons…
First of all, the Eotech EFLX is built to be tough. It has rugged sight housing design, and it’s rated to be waterproof in up to 33 feet of water. Aside from that, it also features a large sight window with clear glass which gives you a wide field of view when you’re shooting…
It also gives you around 20,000 hours of battery life from one CR2032 battery, which is conveniently top loading when you need to replace it (so there is no need to remove the optic from your slide), and it can be had with a 3 MOA dot reticle or a 6 MOA dot reticle (my preference would be the 3 MOA dot because it’s more precise for accurate shots)…
Last, the Eotech EFLX features the Delta Point Pro footprint, and if you’ve been paying attention, you know by now that the Sig M18 is set up for this footprint with it’s optic cut, and that means that it will be extremely easy to get the EFLX mounted on your gun…
So all in all, the Eotech EFLX is another amazing red dot sight, and because it features the Delta Point Pro footprint, it’s a perfect match for the Sig M18 right out of the box.
| Feature Benefits | |
| Aluminum housing | Durability |
| Large Sight Window | Wide open field of view |
| 20,000 Hour Battery Life | Ultra long battery life |
| 8 Brightness settings | Adjust to any light condition |
| Top access Battery Compartment | Quick and easy battery changes |
Click The Button Below To Learn More About The Eotech EFLX:
4. Holosun 508T X2
Number 4 on my list is the Holosun 508T X2, and there are many reasons to love this little sight. First of all, this optic is durable and actually features a titanium sight housing in addition to many other really useful features…
You also get 12 brightness settings, with two night-vision compatible settings, and around 50,000 hours (5 years) worth of battery life. Aside from that, this sight comes with a solar panel (to back up your battery if it fails), Shake Awake technology (which saves your battery life even more), and a convenient sight loading battery tray…
On top of all that, this sight also feature’s Holosun Multiple Reticle System which basically means that you get 3 reticle options programmed into the sight. The 3 options include a 2 MOA dot, a 32 MOA Circle, and a combination of the two for a Circle Dot Reticle…
Out of the 3 my favorite is the Circle Dot Reticle because it helps you shoot amazingly fast at targets up close, but you still have that small 2 MOA dot in the center for when you need to make precise shots…
Now, the 508T does feature the Trijicon RMR footprint. So you will need an adapter plate to mount it on your M18 (I recommend this one here). But because of the unique features that this optic offers, it’s one of my favorite pistol optics and definitely deserves a place on this list.
| Feature Benefits | |
| Titanium housing | Durability |
| Solar failsafe | It helps when the battery runs out of power |
| Shake awake | Saves battery power |
| 12 Brightness settings | Adjust to any light condition |
| Lock mode | Locks the buttons to prevent setting changes |
Click The Button Below To Learn More About The Holosun 508T X2:
5. Sig Romeo 1 Pro
Alright, so the M18 and M17 are made by Sig Sauer, but did you also know that Sig actually makes optics as well…?
Well, they do. And the Sig Romeo 1 Pro is another fantastic optic that will work really well with the M18 for many reasons…
First of all, the Romeo 1 Pro is a fairly durable sight. It’s not to the level of the Delta Point Pro or the Trijicon RMR, but it can handle a fair amount of abuse…
It’s also waterproof in up to 1 meter of water, fog proof, and you can actually get a steel shroud that goes around the sight if you’re really concerned with the durability…
On top of that, you can get the Romeo 1 Pro with a 3 MOA dot reticle or a 6 MOA dot reticle (again, I prefer the 3 MOA dot version), and you also get ultra long battery life of around 20,000 hours with one CR1632 battery…
Last but not least, this sight features Sig’s MOTAC system which will extend your battery life even further, and it’s set up with a Delta Point Pro footprint. So it will work perfectly with Sig guns like the M18 and over versions of the Sig P320…
So all in all, the Sig Romeo 1 Pro is another great optic, and because it’s actually made by Sig, it’s a great option for the M18.
| Feature Benefits | |
| Molded glass aspheric lens | The high-performance coatings deliver high light transmittance with no distortion |
| 3 or 6 MOA red dot | Includes various brightness settings for quick engagements regardless of lighting conditions |
| TruHold Lockless Zeroing System | Absorbs handgun recoil and returns to zero |
| New point-source emitter | For super brightness with ten-day settings and two-NV settings |
| Motion Activated Illumination System | Activates by motion and powers down when still for battery power saving |
Click The Button Below To Learn More About The Sig Romeo 1 Pro:
6. Holosun 507C X2 (Best Budget Option!)
The last optic on my list is the Holosun HS507C X2, and I think it’s the best option if you’re on a budget. It’s very similar to the Holosun 508T that I mentioned above, but it comes in at a little bit lower price point…
The main difference is that ithe 507C has a sight housing made from Aluminum rather than the 508T’s titanium, but don’t let that fool you. The 507C has been found to be a very tough and reliable optic in it’s own right…
And just like the Holosun 508T it comes packed with useful features. For example, you get 50,000 hours of battery life, the solar panel to back up your battery, the shake awake technology to extend your battery even more, and a side loading battery tray to make battery changes quick and easy…
On top of that, you also get the Multiple Reticle System from Holosun which, again, gives you 3 reticle options programed into the sight, and that includes the Circle Dot Reticle, which I mentioned before was my favorite because it just helps you shoot fast and accurately at the same time…
Last, the Holosun 507C does feature the RMR footprint. So it will require an adapter place to get it mounted onto your M18 (I recommend this one here) But once you have that part, it’ll be easy to mount and you’ll have a strong affordable sight with great battery life and the best reticle that you can get on a pistol optic!
| Feature Benefits | |
| Lens coatings | Holosun lenses have multi-coating features |
| Magnification | The 1x magnification provides a clear vision without distortion |
| Multiple reticle system | Toggle between a 2 MOA and a 32 MOA dot ring |
| Solar failsafe | When the battery dies, you have a backup |
| Shake awake technology | Save on battery power as the device will sleep when not in use |
Click The Button Below To Learn More About The Holosun 507C X2: