When it comes to enhancing the accuracy and performance of my Sig Sauer P365, one accessory that has truly made a significant difference in my shooting experience is a red dot sight.
As a proud owner of this compact and reliable handgun, I understand the importance of choosing the best red dot sights for Sig Sauer P365.
These sights not only provide rapid target acquisition but also elevate the overall shooting precision, making them an indispensable addition for anyone looking to optimize their P365’s capabilities.
In this guide, I will explore the top 10 best Sig Sauer P365 red dot, helping you make an informed choice to take your shooting game to the next level.
10 Best Sig Sauer P365 Red Dot Sights
I have tested and reviewed various red dot sights that are compatible with Sig Sauer P365. After thorough research and hands-on experience, I have narrowed down the list to the top 10 best optics for P365.
Whether you’re a professional shooter or a beginner, these sights will enhance your shooting experience and accuracy. Read on to find out which red dot sights made it to our list.
1. Trijicon RMR
Specifications
- Magnification: 1x
- Objective Lens Diameter: 25mm
- Field of View: 120°
- Battery Life: 4 years
- Weight: 5.2 ounces
Features
- 3.25 MOA adjustable red dot
- 8 brightness settings, including 2 night vision compatible
- Ruggedized construction with patented housing shape that absorbs impacts and diverts stresses away from the lens
- Battery conservation mode automatically adjusts aiming dot to ambient lighting conditions after 16.5 hours
- Dependable electronic design with ruggedized battery contacts and electronics
- Easy push buttons for brightness adjustment
- The patented housing shape absorbs impacts and diverts stresses away from the lens, increasing durability.
- The upgraded electronics have been proven to perform when mounted on slide ride pistols and other small arms.
- The illumination control is in the user’s hands with easy-to-use buttons on the sides of the optic.
- It is quite a bit more expensive than its competitors.
- Extreme temperatures (high or low) will affect lithium battery performance.
- A Trijicon RMR mounting kit (AC32064) is required for mounting on certain firearms.
2. HOLOSUN HS507K
The Holosun HS507K is a micro red dot sight that is designed for use on handguns. It is a popular choice for concealed carry and competition use, as it is lightweight and compact. The HS507K has a 2 MOA red dot, which is small enough for precise aiming, and it is also available with a 32 MOA circle dot reticle.
The HS507K is powered by a CR1632 battery, which has a battery life of up to 50,000 hours. The sight is also parallax-free, so you don’t have to worry about your point of impact changing as you move your head around.
Specifications:
- Reticle: 2 MOA dot
- Reticle color: Red or green
- Field of view: 30 degrees
- Eye relief: Unlimited
- Magnification: 1x
- Battery type: CR1632
- Battery life: Up to 50,000 hours
- Dimensions: 2.05″ x 1.25″ x 0.91″
- Weight: 1.3 ounces
Features:
- Multi-reticle system: Choose between a 2 MOA dot only, 32 MOA circle only, or both.
- Shake Awake: The optic turns on when it senses movement and turns off when it does not.
- Lock mode: Prevents accidental button presses and changes to settings.
- Parallax-free: The reticle will stay on target regardless of where your eye is behind the optic.
- Durable construction: CNC milled 7075 aluminum housing.
- Easy battery replacement: Side-mounted battery tray for quick and easy battery changes.
- The red-illuminated ACSS Vulcan Dot Reticle System makes it easy to quickly acquire targets.
- The ultra-compact size of the sight makes it easy to carry and use.
- The Shake Awake feature ensures that the sight is always on when you need it.
- The RMSc footprint may require a separate adapter plate for an exact fit.
- The price point may be a bit high for some.
- The sight is not compatible with all handguns.
3. Trijicon RMRcc Sight Adjustable LED Red Dot
The Trijicon RMRcc Sight Adjustable LED Red Dot is a compact, reliable, and durable red dot sight designed for concealed carry pistols.
It features a snag-free design that reduces the risk of snagging on clothing or holsters, and it is also built to withstand the rigors of everyday use.
The RMRcc is powered by a common 2032 battery that provides up to 4 years of continuous use, and it also features eight adjustable brightness settings to accommodate a variety of lighting conditions.
Specifications:
- Magnification: 1x
- Objective Lens Diameter: 20mm
- Field of View: 110ft @ 100yds
- Eye Relief: 0.8in
- Length: 3.2in
- Weight: 1.1oz
- Battery Life: 4 years
Features:
- Designed for concealed carry
- Snug-free design
- Outstanding durability
- Easily adjustable windage/elevation
- 3 MOA dot
- 8 brightness settings, including 2 night vision modes
- Button lockout and lock-in modes
- Common CR2032 battery
- Designed to fit on many of the most popular concealed carry pistols on the market
- Unique, patented housing shape diverts the force of an impact away from the lens, greatly increasing durability
- Complete user-control illumination settings: 8 brightness settings, including 1 super bright mode and 2 night vision modes
- No night vision capability
- Some users may find the sight picture too small
- Price may be a bit steep for some budgets
4. Swampfox Sentinel Micro Reflex
Swampfox Sentinel Micro Reflex Red Dot is an ultra-compact, lightweight, and durable pistol red dot sight designed for everyday carry (EDC) use on micro handguns.
It features a 16mm window with a durable, thin hood, providing a wide field of view for easy target acquisition and transition.
Constructed from hard-coated 7075 aluminum, Sentinel is shock-proof to 1,500 G forces and waterproof, making it ideal for rugged conditions.
Specifications:
- Magnification: 1x
- Objective Lens Diameter: 16mm
- Reticle: 3 MOA Red Dot
- Eye Relief: Unlimited
- Field of View: 16°
- Battery Life: Up to 2 years
- Battery Type: CR2032
- Weight: 0.62 oz
- Dimensions: 1.61″ x 0.91″ x 0.94″
Features:
- Always-on, auto-brightness red dot
- Durable 7075 aluminum body
- Multi-coated glass lens
- RMSc footprint
- Shockproof to 1,500 G forces
- Waterproof
- Easy to install and use
- The Sentinel is made of CNC machined 7075-T6 aluminum and features multicoated glass, which makes it durable and reliable.
- The Sentinel is very small and won’t affect your concealment at all. It fits any slimline slide with an RMSc footprint incorporated.
- The Sentinel is shock rated to an incredible 1500 G and is “dunk it” waterproof when installed using the included flexible seal that fits between the optic and footprint.
- The Sentinel-A (automatic) version doesn’t work well in complete darkness, so the manual version may be a better option for some users.
- The Sentinel only has a 3 MOA dot, which may not be ideal for everyone.
- The Sentinel is a bit pricey compared to some other red dot sights on the market.
5. Swampfox Liberty & Justice
The Swampfox Liberty & Justice are micro reflex red dot sights designed for everyday carry, competition, and law enforcement use. They are built on the industry-standard RMR footprint and are compatible with a wide variety of pistol slides and mounts.
The Liberty and Justice feature a 7075 aluminum housing that is both lightweight and durable. They also have a Shake N’ Wake illumination system that automatically turns the red dot on when it senses movement and off after 4 hours of inactivity. This helps to conserve battery life.
The Liberty and Justice both have a 3 MOA red dot reticle that is clear and easy to see in a variety of lighting conditions. The red dot is also adjustable for brightness to match your environment.
Specifications:
- Magnification: 1x
- Objective Lens Diameter: 22mm (Liberty) or 27mm (Justice)
- Reticle: 3 MOA Red or Green Dot
- Field of View: 16.5 degrees (Liberty) or 19.5 degrees (Justice)
- Eye Relief: Unlimited
- Battery Life: Up to 4,000 hours on mid-range brightness
- Dimensions: 2.25″ x 1.67″ x 0.95″ (Liberty) or 2.25″ x 1.67″ x 1.05″ (Justice)
- Weight: 2.2 ounces (Liberty) or 2.3 ounces (Justice)
Features:
- Rugged 7075 aluminum construction
- Shake ‘N Wake motion sensing illumination
- Multicoated lens for excellent clarity and light transmission
- Anti-fog, anti-scratch, and hydrophobic lens coatings
- Top-loading CR1632 battery for easy replacement
- RMR footprint compatible
- Available in red or green dot
- The 22mm wide window on the Liberty model makes it easy to conceal and the Justice model’s larger 27mm window is great for faster sight acquisition.
- Both models have a long battery life and feature Shake ‘N Wake motion sensing illumination technology to help save battery life.
- The Liberty and Justice models fit securely in all ALS series duty holsters, so there’s no need to invest in an expensive custom holster setup.
- Some users have reported concerns about the durability of the Swampfox Liberty & Justice Micro Reflex Red Dot Sights.
- The brightness buttons on the Liberty model are flush-fitting, which can make them difficult to locate and use in low-light conditions.
- The Swampfox Liberty & Justice Micro Reflex Red Dot Sights are not the most affordable option on the market.
6. HOLOSUN HS407K X2
The HOLOSUN HS407K X2 Red 6 MOA Dot Open Reflex Optical Sight (Red Dot) is a popular choice for subcompact pistols due to its compact size, lightweight design, and long battery life.
It is also parallax-free, which means that the point of aim will not change as the shooter’s eye moves behind the sight. The Red Dot has 12 brightness settings, including two night vision compatible settings.
It also features Shake Awake technology, which turns on the Red Dot when the pistol is moved. The Red Dot is powered by a CR1632 battery, which can last up to 50,000 hours.
Specifications:
- Reticle: 6 MOA dot
- Magnification: 1x
- Field of view: 16.5°
- Eye relief: Unlimited
- Battery life: Up to 50,000 hours (setting 6)
- Battery type: 1x CR1632
- Dimensions: 1.6 x 0.98 x 0.95 inches
- Weight: 0.96 ounces
Features:
- Shake Awake™ technology: Powers the reticle on when motion is detected and off when it is not to conserve battery life.
- Solar Failsafe™ technology: Allows the reticle to remain powered even when the battery is dead, as long as there is sufficient ambient light.
- Lock mode: Prevents accidental changes to the reticle brightness and other settings.
- Side-mounted battery tray: Allows for easy battery replacement without having to remove the sight from the firearm.
- Durable construction: Made from 7075 T6 aluminum and is IP67 waterproof and dustproof.
- The HOLOSUN HS407K X2 is an open reflex optical sight designed for subcompact pistol applications.
- The Shake Awake technology extends battery life by deactivating the optic’s LED while not in use.
- This red dot sight is manufactured using optical-quality glass lenses with multilayer coatings applied to facilitate maximum light transmission and wear resistance while reducing glare.
Pricey
7. Crimson Trace RAD Micro Compact
The Crimson Trace RAD Micro Compact Open Reflex Pistol Sight is an ultra-compact, versatile, and reliable red dot sight designed for compact and subcompact pistols. It features a 3 MOA red aiming dot that provides fast target acquisition and precise shot placement, even in low-light conditions. The CT Radiant ambient light sensor automatically adjusts the brightness of the dot to match the surrounding lighting conditions, ensuring optimal visibility in any environment.
The RAD Micro is constructed from durable aerospace-grade aluminum, making it lightweight and rugged. It boasts an IPX4 water resistance rating, ensuring reliable performance in wet or humid conditions. The sight also features a recessed, fully multi-coated lens that provides exceptional clarity and protects against scratches and debris.
The RAD Micro’s compact design makes it ideal for concealed carry pistols, while its integrated co-witness capability allows shooters to use their iron sights as a backup aiming system. The sight’s windage and elevation adjustments are easily accessible without tools,
Specifications:
- Reticle: 5 MOA Green Dot
- Lens: Fully Multi-Coated
- Field of View: 14.5 feet @ 100 yards
- Battery Life: 20,000 hours
- Mount: CT Micro™ Compatible with Shield RMS® and JPoint®
- Dimensions: 1.7″ x 1″ x 1″
- Weight: 0.6 ounces
Features:
- Integrated co-witness sight
- CT Radiant™ ambient light sensor automatically adjusts brightness
- Durable 7075 Series Aerospace Aluminum construction
- Innovative top strap design deflects force if the sight is dropped
- CRIMSON Protect Lifetime Warranty
- The ambient light sensor adjusts the reticle brightness, making it easy to see in various lighting conditions.
- The shake-to-wake sensor automatically activates the reticle when drawn, so you don’t have to fumble with buttons or switches.
- The 3 MOA red dot reticle is easy to acquire and the integrated co-witness sight adds confidence to your shot.
- The price point is a bit higher than some other red dot sights on the market.
- The battery life is good, but not exceptional.
- The mounting may not be compatible with all firearms.
8. Vortex Optics Viper
The Vortex Optics Viper Red Dot Sight – 6 MOA Dot is a versatile red dot sight that is perfect for a variety of applications, including pistols, rifles, and shotguns.
It features a super-low mounting height that makes it ideal for use with cutout slides, and its 6 MOA dot is easy to see and get you on target fast. The sight is also fully multi-coated for exceptional clarity, and it is protected by Armortek coatings that guard against scratches, oil, and dirt.
The Viper Red Dot Sight is powered by a single CR2032 battery that provides up to 150 hours of use at the highest setting. At lower settings, the battery can last up to 30,000 hours. The sight also features left-side up/down power and illumination controls that are easy to access and manipulate.
Specifications
- Magnification: 1x
- Reticle: 6 MOA dot
- Dot color: Red
- Dot intensity: 10 levels
- Field of view: Unlimited
- Eye relief: Unlimited
- Battery life: Up to 150 hours on highest setting, up to 30,000 hours on lower settings
- Battery type: CR2032
- Dimensions: 1.8 inches long, 0.9 inches wide, 1.1 inches high
- Weight: 1.03 ounces
- Mount type: Weaver/Picatinny
Features:
- Ultra-hard, scratch-resistant ArmorTek coating protects the exterior lenses from scratches, oil, and dirt.
- Fully multi-coated lenses provide excellent light transmission and image clarity.
- Rugged construction withstands recoil and impact.
- Recessed 1 MOA windage and elevation adjustments are protected from accidental contact.
- Left-side up/down power and illumination controls are easy to access and manipulate.
- Daylight bright red dot is easy to see in all lighting conditions.
- Unlimited eye relief and field of view for fast target acquisition.
- Includes Weaver/Picatinny mount, T-10 Torx wrench, CR2032 battery, lens cloth, flathead wrench, and protective cover.
- The low-profile design makes it perfect for handguns with cut-out slides.
- The 6 MOA dot is easy to pick up and get you on target fast.
- The fully multi-coated, ultra-clear lens offers a wide, unobstructed field of view.
- The battery does not have a cover and may fall out when trying to attach the sight to its mounting plate.
- Some users reported difficulty zeroing in the sight.
- The hard anodized finish may not be as durable as advertised.
9. Vortex Optics Venom
The Vortex Optics Venom Red Dot Sight is a versatile and reliable red dot sight that is perfect for a variety of shooting applications.
It features a rugged aluminum construction, a wide field of view, and a 3 MOA red dot that is ideal for fast target acquisition.
The Venom is also backed by Vortex’s lifetime warranty, so you can be sure that it will perform flawlessly for years to come.
Specifications
- Magnification: 1x
- Dot Size: 3 MOA
- Reticle: Red dot
- Eye Relief: Unlimited
- Field of View: 110 feet @ 100 yards
- Length: 1.9 inches
- Weight: 1.05 ounces
- Mount Type: Weaver/Picatinny
- Battery Life: Up to 150 hours on highest setting, up to 30,000 hours on lower settings
Features
- ArmorTek® ultra-hard, scratch-resistant coating
- Fully multi-coated lenses
- Shockproof, rugged construction
- 10 brightness levels in manual mode
- Auto brightness mode
- Parallax-free
- Lifetime warranty
- The 3 MOA dot promotes rapid target acquisition while providing a precise point of aim, making it easy to get shots down range and on target fast.
- The high-quality, fully multi-coated lenses offer a clean, wide field of view, and the power and dot intensity controls are conveniently located on the left side of the sight.
- The Venom also has an auto-brightness mode that uses an ambient light sensor to control dot intensity if the shooter prefers.
- The battery cover can be difficult to re-install with a battery in place.
- Some users have reported issues with the dimming function ceasing to work after extended use.
- The sight may need to be re-zeroed after battery changes.
10. Sig Sauer Romeo Zero
The Sig Sauer RomeoZero 1x24mm Red Dot Sight is an ultra-compact micro reflex sight designed for everyday concealed carry and pistols with slim slide profiles.
It is the fastest, most accurate sight in its class, and features a ruggedized, WeaponsGrade™ textured polymer body and the SpectraCoat™ HD Polymer lens system.
The ROMEOZero enables rapid target acquisition in an everyday carry package at an iron sight price.
Specifications:
- Magnification: 1x
- Objective Lens Diameter: 24mm
- Reticle: 3 MOA Red Dot
- Field of View: 13.2 degrees
- Eye Relief: Unlimited
- Weight: 0.5 ounces
- Dimensions: 1.6 x 0.93 x 0.93 inches
- Battery Life: Up to 20,000 hours
Features:
- Ultra-compact and lightweight design for concealed carry
- Ruggedized polymer body and SpectraCoat HD polymer lens system
- 3 MOA red dot reticle for fast and accurate target acquisition
- 8 daylight brightness settings
- T.A.P. (Touch-Activated Programming) and button-activated brightness and reticle selection modes
- Rear backup sight notch filled with Grade A Swiss SuperLuminova for low light conditions
- The point source LED emitter provides a crisp dot that is 8 times more efficient than conventional red dots, making it highly efficient and clear.
- The ultra-compact design of the Sig ROMEO Zero micro reflex sight makes it the fastest, most accurate sight for everyday concealed carry and pistols with slim slide profiles. It’s easy to carry all day, every day.
- The bundle includes a lens cleaning pen and cloth, making it easy to keep the sight clean and clear on the go.
- The Sig Sauer Romeo Zero Reflex Red Dot Sight Bundle is not compatible with slides cut to accept a standard ROMEO1, so it may not work with all firearms.
- Some users have reported that the battery life is shorter than expected, so it may need to be replaced more frequently.
- The price point is higher than some other options on the market, so it may not be the best choice for those on a tight budget.
How to Choose The Right Sig Sauer P365 Red Dot Sight?
When looking for the best red dot sight for Sig Sauer P365, there are a few key features to consider. Here are some factors to keep in mind when making your purchase:
1. Mounting Options
First and foremost, make sure that the P365 red dot sight you choose is compatible with the mounting system on your Sig Sauer P365. Some sights may require a specific mounting plate or adapter, so be sure to check the product specifications before making your purchase.
2. Reticle Options
The reticle, or the aiming point, is another important factor to consider. Some P365 red dot sights offer a single dot, while others may have a crosshair or other pattern. Consider which type of reticle will work best for your shooting needs and preferences.
3. Size and Weight
The size and weight of the P365 red dot sight can also be important factors to consider. A larger sight may offer a wider field of view, but it may also be heavier and more cumbersome to use. Consider your shooting style and preferences when choosing the size and weight of your red dot sight.
4. Battery Life
Finally, consider the battery life of the P365 red dot sight. A longer battery life can be important for extended shooting sessions or for situations where you may not have easy access to replacement batteries. Look for a sight with a battery life that meets your needs.
Sig Sauer P365 Red Dot Sight FAQs
Q: Is Sig Sauer P365 Optics Ready?
The standard Sig Sauer P365 may not be optics ready, but variants like the P365 XL are designed to be optics ready.
Q: Can you put an RMR on a SIG P365?
Yes, you can mount an RMR (Ruggedized Miniature Reflex) sight on an optics-ready Sig Sauer P365, such as the P365 XL.
Q: Will Holosun 507K fit P365?
Yes, the Holosun 507K is specifically designed for smaller pistols, and it is compatible with the Sig Sauer P365 XL, which is optics ready.
Q: Can you put a Holosun on a Sig P365?
If you have an optics-ready version of the Sig Sauer P365 (like the P365 XL), you can indeed mount a Holosun sight, including models like the Holosun 507K.
Q: Will Holosun 507C fit on P365?
The Holosun 507C is larger than the 507K and may not be a direct fit for the standard Sig Sauer P365. However, it could potentially be mounted on an optics-ready version, such as the P365 XL, with the appropriate adapter plate.
Wrap Up
After conducting extensive research and testing, I have determined that the best red dot sight for Sig Sauer P365 is the Holosun HS507C X2. This sight offers a clear and bright reticle, durable construction, and a long battery life. Additionally, its compact size and lightweight design make it an ideal choice for the P365.
When choosing a red dot sight for your P365, it is important to consider your specific needs and preferences. Some users may prioritize battery life, while others may prioritize reticle clarity or durability. Ultimately, the best red dot sight for P365 will depend on your individual needs and preferences.
Shelly Jark Drakny is a retired SF weapons sergeant (E-5 or above) with a military occupational specialty (MOS) code 18B. He served 24 years in the military, including assignments in SF, Infantry, and Special Forces.
I’ve got a crimson dot mounted on my P365XL. It’s my preferred aiming method, so it makes perfect sense for me to carry it as part of my everyday carry (EDC) setup. I have no worries about adding extra bulk to the firearm, especially since it also comes equipped with backup iron sights, just in case.