Are you in search of the best red dot for Sig P320? You have come to the right place. This post sheds light on the best red dot sights for Sig P320.
One of the most popular handguns available on the market today is the Sig P320. It boasts a smooth trigger pull to enhance your accuracy and ensure cleaner, faster action results. This easy-to-conceal handgun is also optic-ready so you can use it together with your accessory of choice.
A red dot sight is one of the most popular accessories you can add to your Sig P320. Mounting a quality red dot will enhance your shooting accuracy and turn your shooting expeditions into a success. It will also help you acquire targets quickly in any situation.
What Makes a Great Sig P320 Red Dot?
A great Sig P320 red dot sight is one made of a multitude of features that play specific roles. Firstly, the sight should have a bright and clear red dot that is accurate and easy to spot.
Secondly, the red dot sight has to have a durable housing that shields the optics from impacts guaranteeing many years of field use. Other essential features that the red dot sight should have include:
- A long battery life to keep the red dot illuminated when you need it most
- Unlimited eye relief and parallax-free design for rapid target acquisition
- A compact and lightweight design ensures that no extra weight is added to the handgun
- A mount that is easy to install and detach
- Multi-coated lenses provide bright and clear views of targets, even in poor lighting conditions
- Weatherproof design for operability in all weather conditions
8 Best Red Dot Sights for Sig P320
With a sea of red dots available out there, selecting a model that suits your needs is no mean feat. But we are here to help.
We have created a review of the top-rated red dot sights for Sig P320 and included an in-depth buying guide to help you make an informed buying decision. Let’s take a look.
1) Trijicon RMR Type 2 3.25 MOA Adjustable Red Dot Sight
Trijicon is a renowned brand in the industry of optics. It makes tough and reliable optics and the RMR Type 2 3.25 MOA Adjustable Red Dot Sight lives up to this reputation. It pairs well with the Sig P320 and other firearms including rifles and shotguns.
As one of the best red dot sights for Sig P320, this reflex sight will significantly increase the precision and accuracy of your handgun. The aiming point of this red dot sight is a 3.25 MOA reticle which comes with eight manual brightness settings, including two for night vision devices.
To complement the multiple brightness settings, the sight features a True-Color multi-coated glass window which provides a large, unobstructed field of view.
Another defining feature of the sight is the robust construction. Engineered for use in all terrains, the sight features 7075 aluminum housing and impact-resistant glass window. It is also water submersible to 66’ to weather elements and withstands the rigors of daily use.
This sighting tool is also built with a locking button to prevent accidental adjustments and improved electronics and battery contacts to ensure high performance in all conditions.
Features
- 25 MOA red dot reticle
- Tempered glass window
- True-color multi-coated glass window
- Waterproof construction
- Adjustable LED illumination
- 7075-aluminum housing
- Parallax-free design with unlimited eye relief
Pros
- Night vision compatible
- Long battery life
- Compact and lightweight design
- Easy to install
2) Holosun HE507-X2-ACSS Pistol Green Dot Sight
If you are looking for a high-capacity red dot sight that will not die in the middle of use, you found it. The Holosun HE507-X2-ACSS Pistol Green Dot Sight. This pistol sight will greatly improve your handgun performance.
It has a 50,000-hour battery life and Shake Awake Technology which conserves battery life by powering the sight only when it’s needed.
With 12 different brightness settings, you will be able to customize the brightness of the reticle to match your surrounding environment.
Better yet, two of the lowest settings are night vision compatible so you can use the sight during the day or at night.
Regarding construction, the sighting tool has a 7075-T6 aluminum body coated with scratch-proof and rust-proof anodized finish.
It also features a convenient battery tray which allows for easy battery change without removing the optic from the firearm.
Other essential features included are multi-coated glass, parallax-free design, and unlimited eye relief. Surely, the HE507K is a top contender among the best red dot sights for Sig P320.
Features
- Multi-reticle system
- Shake Awake technology
- Black anodized coat
- ACSS Vulcan reticle
- 7075-T6 aluminum housing
- Multi-coated glass
- 12 brightness settings
Pros
- Compatible with night vision devices
- Battery included
- Easy to install
- Suitable for people with diminishing eyesight
Cons
- Chevron is not so practical
3) Leupold DeltaPoint Pro 6 MOA Red Dot Sight
Leupold is a household name in the optics field. It makes a multitude of quality, tough and reliable optics and the DeltaPoint Pro 6 MOA Red Dot Sight is not any different. It supports night vision devices and is compatible with modern white phosphor equipment.
Featuring a large 6 MOA reticle, the sight is ideal for use by all even those with eyesight problems. It is dubbed one of the best red dot sights for Sig P320 ideal for home defense and competitive speed shooting where speed and accuracy are paramount.
It delivers quick and precise adjustments with 1 MOA click and with the huge field of view included, your speed of target acquisition will be greatly improved.
To eliminate distortion and color inconsistencies, this sighting tool boasts crystal-clear lenses. Furthermore, it is built with a professional-grade optical system and motion sensor technology which extends the battery life.
Like any other Leupold optic, the sight is built to last. It has a lightweight yet tough housing that offers unrivaled durability. It is also waterproof, fogproof and guaranteed to perform for life.
Features
- Motion sensor technology
- Professional-grade optical system
- Waterproof and fogproof
- Rugged aluminum housing
- Scratch-proof lens coating
- 8 brightness levels
- 6 MOA red dot
Pros
- Compatible with night vision devices
- Easy to install
- Solid construction
- Easy to zero
- Crisp clear glass
Cons
- The battery life could be better
4) Vortex Viper 1x24mm 6 MOA Red Dot Sight
The Viper 1x24mm 6 MOA Red Dot Sight is one the best red dot sights for Sig P320 for budget buyers. It brings to the table an array of fine and reliable features all at a reasonably affordable cost.
A defining feature of this sighting tool is its outstanding durability. It has a single-piece chassis made from aluminum and coated with a Type III hard anodized finish.
Moreover, the body is shockproof to weather recoil, impacts and accidental falls. It is also sealed with O-rings to be fully waterproof and dustproof.
The aiming point of this optic is a 6 MOA red dot. To ensure that the reticle is visible in all lighting conditions, the sight has its optics fully multi-coated.
It also features 1x magnification, a large field of view and unlimited eye relief for rapid target acquisition.
All Viper 1x24mm 6 MOA Red Dot Sights also have a Picatinny style mounted included for easy installation on different firearms.
Features
- Fully multi-coated optics
- Unlimited eye relief
- Type III hard anodized finish
- Waterproof and shock-resistant
- Armortek scratch-proof lens coatings
- 120 MOA windage and elevation adjustment range
- 6 MOA red dot reticle
Pros
- Easy on the wallet
- Bright, clear and easy-to-spot reticle
- Easy to install
Cons
- It does not hold zero
5) Sig Sauer Romeo 1Pro 1x30mm Red Dot Sight
The Sig Sauer Romeo 1Pro 1x30mm Red Dot Sight is the perfect companion for Sig P320. Outstanding performance and superior optics make it one of the best red dot sights for Sig P320.
Mounting this red dot sight on your Sig P320 will boost your speed when it comes to target acquisition and enhance your accuracy. This high-quality red dot sight will transform your pistol into an efficient shooting solution for close-range applications.
It is expertly crafted with a molded glass aspheric lens to guarantee stunning optical performance. Besides, the optics feature high-performance coatings that optimize light transfer and reduce glare and light reflection. The result is a display of clear and brilliant sight pictures with zero distortion.
Another highlight of the sight is the rugged yet lightweight aluminum body which protects the lens system from impacts and harsh elements. You can also use the red dot sight in any weather condition as it is fully waterproof and fogproof.
For added convenience, the sight boasts a motion-activated illumination system that powers it up and down by sensing motion. It also features 12 brightness settings to match your target background and improve accuracy.
Features
- Aircraft-grade aluminum housing
- IPX-7 water resistance rating
- Picatinny mount
- 12 brightness levels
- Molded glass aspheric lens
- Motion-activated illumination system
- TrueHold lockless zeroing system
Pros
- Multi-reticle system
- Top battery access
- Easy to sight in
- Rugged and reliable construction
6) AimPoint ACRO P-1 Red Dot Reflex Sight
Aim with one of the best red dot sights for Sig P320. The Aimpoint ACRO P-1 Red Dot Reflex Sight is made for pistols and other firearms compatible with small enclosed red dot optics. It is simple to use, even for beginners and very easy to install and detach.
Though compact, this reflex sight is built like a tank. It is tested for shock, vibration, temperature and external environment stress to ensure optimal durability as well as longevity. Furthermore, the sight is waterproof and submersible up to 25m for use in inclement weather.
With this sighting tool, you can change the 3V lithium battery without removing it from your gun and save time when you are in a situation where every second matters. Besides, you get 10 brightness settings to choose from, four of which are compatible with any night vision device.
The reflex sight also features multi-coated lenses which enhance light transfer in low-light settings and a semi-matte anodized finish that is scratch-proof and corrosion-resistant.
Features
- 5 MOA red dot reticle
- Multi-coated optics
- Waterproof and submersible up to 25m
- Semi-matte anodized finish
- 10 brightness settings
- Fully enclosed housing
- High-strength aluminum body
Pros
- Rugged construction
- Easy to install
- Compact and lightweight design
Cons
- Poor battery life
7) Vortex Razor Reflex Red Dot Sight
Next on our list of the best red dot sights for Sig P320 is the Vortex Razor Reflex Red Dot Sight. This high-quality red dot sight will add high accuracy to your firearm and make target acquisition easy.
Made with XR proprietary anti-reflection lens coatings, the sight provides exceptional brightness and a red dot that is exceedingly bright in any lighting condition.
To complement this premium quality lens coatings, the sight also boasts a wide-field lens which provides a wide field of view and high edge-to-edge resolution.
Moreover, the optic is built to last. It has a one-piece chassis that is shockproof, recoil proof and impact-resistant. For added protection, the exterior lenses of this red sight are coated with Armortek which shields them from scratches, dirt and dust.
What’s more, this sighting tool is waterproof to be usable in any weather condition. It is also powered by one CR 2032 battery which provides up to one year of non-stop runtime on the highest setting.
Features
- Unlimited eye relief
- XR fully multi-coated optics
- Picatinny mount
- 9 brightness settings
- Aluminum alloy chassis
- Waterproof construction
- Hard anodized matte finish
- Armortek lens coating
Pros
- Bright and clear lenses
- Solid construction
- Good battery life
- Crisp clear red dot
Cons
- Design
8) Holosun Sub compact HS407K-X2 Red Dot Sights
We saved the best for last. The Holosun HS407K-X2 is an open reflex red dot sight designed for concealed carry pistols. It has a compact size and an ultra-lightweight design of 1oz only to ensure that it doesn’t affect the balance of our handgun when you mount it.
This red dot sight provides 12 brightness settings for you to customize your view based on the lighting condition. Two of the lowest settings are night vision compatible for use during tactical operations. Apart from that, the sight features a Shake Awake Motion Technology which provides up to 50,000 hours of battery life.
Construction-wise, this compact red dot sight is made with 7075-T6 aluminum which is IP67 waterproofed to weather all elements and ensure unimpeded field use. It also comes with a Shield RMS Footprint for easy installation and multi-coated optics to enhance light transmission.
Features
- Unlimited eye relief
- 7075-T6 aluminum housing
- Multi-coated optics
- Shield RMS Footprint
- 12 brightness settings
- 6 MOA red dot reticle
- IP67 water resistance level
- Anodized finish
Pros
- Quick and simple installation
- Durable and well-built
- Bright and clear dot
- Lightweight and easy to use
- Excellent battery life
Cons
- Parallax distortion
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Choosing the Best Red Dot Sights for Sig P320
Choosing a red dot for your Sig P320 is not something to do on a whip. Here are the important factors you need to consider when making a purchase.
Dot Size
The first factor to consider is the reticle size of the red dot sight. This varies from as small as 1 MOA to 6MOA and above.
Typically, the smaller the dot is, the more accurate it will be. It will cover a small area of the target and give you the best balance between speed and accuracy.
On the other hand, people with poor eyesight are better of with the larger red dots. They are easier to spot and best for applications where rapid target acquisition is vital.
Durability
The sight you get will be subjected to different environments when you are shooting with it. Investing in a product that is built well using high-quality materials will not just enhance durability, but also ensure reliable performance in all environments.
The best red dot for Sig P320 will be shockproof to take in the beating and ensure that you get to use it for many years.
A good optic will also have a scratch-resistant coating for added protection and waterproof construction to ensure unimpeded field use.
Battery
All red dots require batteries to operate. The only difference is the type of battery the sight uses. It can either be CR2032 or CR1632 depending on the brand the sight is from.
The larger the battery capacity is, the better. You will be able to use it for a prolonged period and not worry about it getting depleted in the middle of use. High-capacity batteries will also keep the reticle optimally illuminated in all brightness settings.
Another thing to consider concerning the battery is the battery placement. Go for a sight that allows for battery change when it is still mounted on the firearm.
Brightness Settings
Red dot sights feature multiple brightness settings for you to customize your shooting. In some models, the lowest brightness settings are compatible with night vision devices for added versatility. A tip is to get a sighting tool that offers more than 8 brightness settings.
Further Reading
Why Use a Red Dot Sight on your Sig P320?
Adding a red dot on your Sig P320 will enhance your shooting accuracy in any environment. It will also go the extra mile to boost your target acquisition speed and make you a better shooter/hunter.
How to Mount a Red Dot on Sig P320
With the Sig P320 being an optic-ready handgun, you can mount a red dot directly or use a mounting plate.
Most of the red dots that are compatible with the handgun have a mount that goes directly onto it.
However, if you have a red dot sight that doesn’t mount on the pistol directly, you should get a mounting plate that will act as an adapter.
Conclusion
There is a plethora of great red dot sights that work well with the Sig P320, but the models we have mentioned above are the best of them all.
They are well-built with different shooters in mind and they offer the essential features that you need to make your handgun more functional and versatile.
No matter which red dot you end up choosing, we hope that this article has been of great help to you. Which red dot sight will you pair your Sig P320 with?