The Top 10 Red Dot Sights for the SIG P365

Mini red dot sights have finally made it to the concealed carry market. When the P365 was first introduced, you really didn’t have any options if you were accustomed to carrying your handgun with a red dot sight. Now there are lots of options for the P365 with SIG offering a dedicated handgun that can handle a red dot optic right from the factory. Today we’ll be going over some of the best options for the P365 when it comes to red dot sights. Some of the sights on this list will necessitate the use of an optic plate adaptor so be sure to check to see if your P365 is compatible with that particular optic or if it will need an adaptor plate. If you’re looking for a good universal adaptor plate, I’d recommend the Outer Impact Red Dot Adapter Mount – M.R.A which costs about $55 and is wider than the P365 body allowing it to accommodate larger red dot optics that aren’t micro in nature.

C603L Lighbearing holster
C603L Optic Ready Holster

1. The Trijicon RMRcc

The Trijicon RMRcc was first introduced back in September 2020. Intended exclusively for micro compact 9mm pistols like the SIG 365, the RMRcc simply takes the classic and legendary design of the Trijicon RMR and shrinks it down to a more suitable size for deep concealment. The optic still features a high-capacity battery life off using a single 3-volt CR2032 lithium coin style battery and has dot sizes wither in 3.25 MOA or 6.5 MOA for those who either want more precise shots at long ranges, or a bigger dot for close defensive work. Although the RMRcc comes with the same quality as the rest of Trijicon’s lineup, you also must pay Trijicon pricing which isn’t cheap to put it lightly. Either way, the RMRcc would be my top pick for the P365 platform, and it is the optic I keep always attached to my daily concealed carry pistol. You can expect to pay somewhere in the neighborhood of $650 for an RMRcc.

Sig P365 with Trijicon RMRcc

2.  The SIG Romeo Zero

SIG naturally had to make their own red dot for their own red dot capable pistol. The SIG ROMEO Zero and ROMEO Zero Elite are two such options and the main difference between the two is that the Elite version comes with a metal shroud that better protects the polymer optic body from bumps and scratches. I don’t think the Elite is strictly necessary but it is a nice upgrade if you have the cash to put down for it. Otherwise, a ROMEO Zero will set you back about $200 depending on where you shop for one and it uses a smaller CR1632 battery, features weapons grade polymer construction and a 3 MOA red aiming dot. This one is super lightweight and compact so you won’t have to worry as much about ammunition sensitivity.

P365 with Romeo Zero
Credit for the photo: Oleg Volk

3. The Vortex Viper Red Dot Sight

Probably the most low profile micro red dot design currently on the market, the Vortex Optics Viper red dot is a tiny aluminum bodied red dot sight that is suitable for most micro compact 9mm pistols like the P365. This smaller design means that your gun will print less and is also less likely to get snagged on clothing due to its ramped rear design which allow for clothing to effortlessly slide over the optic body for a clean draw. The Viper features a 6MOA red dot and is powered by a CR2032 coin stile battery. The Vortex Venom costs about $300 from the Vortex Optics Website.

Kel-Tec with Vortex Viper RDS
Credit for the photo: Oleg Volk

4. The Holosun 507K X2

If you’re looking for a good blend of affordability and quality construction, Holosun’s 507X X2 has a great set of features, a micro-compact size to fit in line with the slide width of the P365 and a price to match your carefully planned out budget. Other features of the 507K X2 include an integrated rear backup sight, side loading battery tray, and a motion sensor activated “shake awake” feature that helps to conserve the battery life of the optic. The 507K X2 costs around $300 from most online retailers.

Sig P365 with Holosun 507K X2
Credit: XWerks Firearms

5. The Swampfox Sentinel

This lesser well known optic is capable of mounting directly to the SIG P365 XL’s slide without any additional hardware which is a huge bonus already. Beyond that the Swampfox features durable aluminum construction, an optional lens hood that is similar in nature to the SIG ROMEO Zero Elite’s shroud and of course it comes with a highly aggressive auto off/auto-on sensor that helps to keep the battery life conserved for longer periods. You can usually find the Swamp Fox with a 3 MOA dot for about $260 from most online retailers.

Sig P365 with Swampfox Sentinel

6. The Shield RMSc

Another optic that can be mounted directly to the P365 XL’s slide without additional hardware, the Shield RMSc is fast becoming a standard pattern for red dot equipped pistols. The optic will sit flush with the slide of any of the P365’s current models and also features a super lightweight design with lightening cuts featured on both sides of the optic’s body. The RMSc also features a polymer lens which is more durable than glass when it comes to the sharp recoil and shock of the P365. The RMSc also features a crystal clear lens which helps to clarify the dot and has been known to be one of the best designs for those who have astigmatism.

Sig P365 with Shield RMSc

7. The Crimson Trace CTS-1550

Another polymer body red dot sight, the CTS-1150 is a super affordable option that actually outperforms its price point in my opinion. The optic features a smart integrated backup sight notch in the rear of the optic and has a high efficiency red dot that can last for about two years. The downside of this optic is that it has no controls for changing the brightness of the dot and instead relies on an ambient light sensor to detect the amount of brightness it thinks you’ll need. So far this hasn’t been an issue for me and the 3 MOA dot has thus far been a reliable and accurate enough for close range work. The CTS-1550 costs $180 from the Crimson Trace store.

Crimson Trace CTS-1550
Credit: Crimson Trace

8. The Ade Advanced Optics Crusader

This isn’t a super well known optics company and the optic itself is made cheaply. However, the optic is reviewed very well on most online retailers, and it costs less than $100 so it’s one that you can pick up if you’re on a super tight budget and can’t use iron sights very well. The optic is made from Aluminum and features a 5 MOA red dot powered by a single lithium CR2032 battery. The Crusader is apparently waterproof rated for up to 30-minutes in 4 feet of water and comes with a 1-year warranty from the manufacturer. This model is specifically designed to fit the base model P365, but an adaptor plate can be used to attach it to the P365 XL.

Ade Advanced Optics Crusader

9. The Leupold Delta Point Pro

A very well renowned optic for compact and full size pistols, the Delta point pro or DPP has a wide viewing lens, top loading battery tray, precise 2.5 MOA red dot, and a rugged aluminum body featuring a clever design that directs gas away from the front lens of the optic which will keep it cleaner for longer. The DPP also features a motion sensor which will activate the optic upon drawing it from a custom RDS holster or other concealment method and this helps preserve battery life. The DPP is about the midway point between the RMRcc and the Crimson Trace options and costs around $500.

Leupold Delta Point Pro
Credit: Leupold

10. The Holosun 407K X2

Much less expensive than its 507K cousin but featuring only a central dot instead of a circle dot, the 407K X2 is a more budget friendly option that still comes with smart features like Holosun’s Shake Awake technology and a 50,000-hour battery life on a medium setting. The 407K X2 comes with either a Red or Green dot and is available in a 6MOA dot size making it perfect for concealed carry applications. The 407K X2 costs about $260 from most online retailers and was specifically designed for micro-compact concealed carry pistols.

Holosun 407K X2 with Sig P365
Credit: Boresights Solutions

Conclusion – A holster for P365 with RDS

If you’re going in deep with a red dot for concealed carry, you’ll also want a holster for pistol with RDS. Falco’s RDS holster for the P365 (Model A116 2021) is the perfect Kydex hybrid holster for the job and can accommodate the P365 as well as any of the red dots on this list. Falco Holsters offers various designs for pistols with RDS and as such finding an RDS P365 holster shouldn’t be a problem for you. Combining the P365 with a RDS holster will ensure that you don’t have concealment issues or issues when it comes to drawing the pistol in an emergency. Falco makes some of the best holsters for red dot equipped pistols like the P365, SP2022, S&W SD40 and more than 3,000 other handgun models. Just like any other handgun, you’ll want to make sure you get plenty of practice in with both your red dot and your holster so that you’re efficient and proficient with your draw, and your aim.

IWB holster for Sig Sauer
Optic Ready Holster
Luke Cuenco

Luke Cuenco


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