The Sig P320 stands out as a remarkable handgun for a multitude of compelling reasons. Its reputation for reliability, precision, user-friendliness, and ease of use places it among the top choices for gun enthusiasts.
Much like with rifles, this addition can significantly enhance your shooting speed and accuracy.
The contemporary market is saturated with a wide array of handgun optics, making it vital to identify the best red dot for the Sig P320.
In this article, I aim to present a carefully curated list of the top 8 best red dots for Sig P320.
By the end of this exploration, you will gain a comprehensive understanding of the available options, enabling you to select the optic that perfectly aligns with your needs and preferences.
Top 8 best red dots for Sig P320
- Leupold Delta Point Pro
- Trijicon RMR Type 2
- Trijicon SRO
- Holosun HE508T-X2
- Sig Sauer Romeo 1 Pro
- Vortex Viper 1×24 mm 6 MOA Red Dot Sight
- Crimson Trace RAD Pro
- Holosun HS507C-X2
Let’s get started with our overall best sight for Sig P320:
Leupold Delta Point Pro (best red dot for Sig P320)
Let’s kick things off with the Leupold Delta Point Pro, the top in the list of the best red dots for Sig P320. Constructed with a lightweight yet sturdy aluminum housing, it boasts an added layer of steel protection precisely where it matters most – over the optic’s lens. This rugged build ensures the durability and resilience needed for intense shooting sessions.
Notably, the Delta Point Pro is fully waterproof up to a depth of 66 feet. Such resilience makes it a highly reliable choice for various conditions.
The optic features a 2.5 MOA dot reticle, striking a balance between ease of tracking and pinpoint accuracy.
Moreover, its expansive sight window offers a wider field of view, a valuable advantage when aiming precisely.
While the battery life of 300 hours may not top the charts in this category, the Delta Point Pro compensates with user-friendly features.
It boasts a top-access battery compartment, simplifying battery replacements, and incorporates motion sensor technology to help conserve battery power.
The patented Motion Sensor Technology is a cutting-edge system with the ability to detect even the slightest movement of the sight. This capability triggers the activation of its integrated illumination.
Notably, this illumination is nestled within a specialized light tunnel, a strategic design choice aimed at reducing the optic’s light signature. This feature proves to be of utmost significance in tactical situations where maintaining a low profile and minimizing visibility are top priorities.
Finally, it’s worth noting that numerous Sig P320 models are equipped with slides that come pre-cut to accommodate the Delta Point Pro’s specific dimensions. This means that, in most cases, you won’t require an adapter plate to affix it securely to your handgun.
Pros
- Durable construction
- Versatile brightness settings for various environments
- Waterproof
- Very easy to install and to sight in
- Motion Sensor Technology
- Clarity
- Easy to operate
- Lightweight
Cons
- Battery life could be longer
Trijicon RMR Type 2
The Trijicon RMR stands as a paragon of dependable performance, tailor-made for the Sig P320.
Offering a selection of eight brightness settings and an adaptive auto mode, this sight empowers you to calibrate your reticle to match your surroundings.
Whether you’re out on a sun-soaked outdoor range or in a dimly lit indoor environment, the RMR ensures you never strain your eyes to acquire your target.
When it comes to those long-range shots, the 3.25 MOA dot size is precisely what you need. Unlike many other red dot sights that offer larger, more cluttered dots, the RMR maintains clarity and focus.
Its appeal lies in the swiftness with which your eye can capture it, ensuring rapid target acquisition. Simultaneously, its compact size grants the precision required for accurate aiming, striking an ideal balance between speed and accuracy.
Let me emphasize that this sight is built like a fortress. Its robust aluminum housing can endure submersion in water up to a depth of 20 meters.
Additionally, its lens is crafted from tempered glass, rendering it highly resistant to scratches.
Just picture not having to fret about your sight’s battery for up to four years. Yes, that’s entirely feasible with the RMR.
Powered by a single CR2032 cell, this sight keeps going and going, liberating you to concentrate on refining your shooting skills rather than worrying about frequent battery replacements.
Pros
- Super rugged and reliable
- Long-lasting battery life
- Easy to install
- Versatile brightness settings
- Great reticle
- Quick target acquisition
- Easy windage and elevation adjustments
Cons
- Unlike Delta Point Pro, most P320s do not have an optic cut on their slide for the RMR footprint.
Trijicon SRO
Consider adding the Trijicon SRO to your list of top-notch pistol optics for your P320. Here’s why:
Expansive Sight Window: One standout feature of the SRO is its larger sight window, setting it apart from the RMR. This design enhances your field of view while aiming, a critical advantage for achieving both speed and precision in your shooting.
The Trijicon SRO offers flexibility in dot reticle choices, including 2.5 MOA, 5 MOA, and 1 MOA options. Opting for the 2.5 MOA dot strikes a balance between dot tracking and precise aiming.
It’s worth noting that, similar to the RMR, you may need an adapter plate to mount the SRO on your P320 slide.
The SRO boasts impressive ruggedness and reliability. Crafted with a sight housing constructed from 7075-T6 Aluminum, it can endure the elements and is waterproof up to 10 feet, making it a robust choice.
While its sight housing design differs from the RMR, it’s essential to note that being a Trijicon optic, it still outperforms most other red dots in terms of durability.
The SRO offers an exceptionally long battery life, lasting around three years. Moreover, it features a top-loading battery compartment, providing convenient and quick battery replacement, unlike the RMR which requires removing the optic from your slide for this task.
Pros
Large and clear field of view
Clarity
8 brightness settings
Long-lasting battery life
Easy to adjust
Top loading battery
Versatile dot size options
Durability
Faster Target Acquisition
RMR footprint
Cons
Some find it costly
Holosun HE508T-X2
I’m a big fan of these optics because they are packed with useful features while remaining budget-friendly. It’s an excellent choice for your P320.
One standout feature is the Holosun’s Multiple Reticle System, offering three reticle options. You can choose from a 2 MOA dot, a 32 MOA circle, or the Holosun Circle Dot Reticle, which I highly recommend since it enables rapid and precise shooting.
The Holosun 508T competes head-to-head with the Trijicon RMR in terms of durability. Its sight housing is crafted from titanium, a material known for its exceptional toughness.
It’s capable of withstanding submersion in up to 1 meter of water, making it a reliable companion in various conditions.
User-Friendly Design: The 508T X2 model enables you to lock out the brightness buttons to prevent accidental adjustments.
The Holosun 508T excels in battery life, lasting around 50,000 hours. It also incorporates Shake Awake technology, preserving battery life by activating the sight only when needed.
Changing the battery is a breeze thanks to an easy-access side-loading battery tray, eliminating the need to remove the sight from your slide.
Additionally, it features a Solar Panel on top, allowing you to use the sight even without a battery, an excellent backup option.
Plus, its footprint matches that of the RMR, making it compatible with your Sig P320 slide using an adapter plate.
Pros
- Multi-Reticle System
- Battery-saving Shake Awake feature
- Solar backup option
- Super LED
- RMR footprint
- Clear glass and crisp dot
- Side Mounted Battery
- Easy to use
- Reasonable price
Cons
- Less waterproof compared to Trijicon sights
Sig Sauer Romeo 1 Pro
The Romeo 1 Pro offers a notably large sight window, providing a wide field of view when aiming.
You can opt for either a 3 MOA dot reticle or a 6 MOA dot reticle. I find dot sizes in the 2-3.5 range to be the most convenient for tracking and precise aiming, making the 3 MOA dot version my preference.
What’s particularly convenient is that, as a Sig red dot, it seamlessly integrates with your P320 if it’s factory optics-ready, eliminating the need for an adapter plate for mounting on your handgun slide.
The Sig Romeo 1 Pro is a commendable red dot sight with a robust construction. Crafted from aircraft-grade aluminum, it can withstand the rigors of use and is waterproof up to 1 meter.
However, on its own, it may not be the most durable option for demanding applications. Sig has included a protective steel shroud that can be mounted over the sight, elevating its durability.
With this addition, it transforms into an exceptionally rugged handgun red dot, making it a solid choice, even for those planning to use their P320 as a duty pistol.
Further enhancing its appeal, the Sig Romeo 1 Pro boasts a prolonged battery life, lasting approximately 20,000 hours.
It also features Sig’s MOTAC (Motion Activated Illumination) technology, ensuring that the sight conserves battery by automatically turning off when idle and swiftly activating when it senses motion.
Pros
- Exceptional lens quality
- Long battery life
- Easy Sight in
- Top battery access
- 3 or 6 MOA reticle
- Versatile brightness settings
- Ruggedized protective steel shroud
- Crisp & Clear
- MOTAC feature
Cons
- Some take time to get used to using it
Vortex Viper 1×24 mm 6 MOA Red Dot Sight
The Viper Red Dot Sight stands as one of the best red dots for Sig P320, and here’s why:
The 6 MOA dot is a true delight to work with. Its size strikes the perfect balance – large enough to remain visible without obscuring your target, yet not too small to lose sight of.
The dot offers excellent visibility in bright daylight and can be dialed down for low-light conditions. It provides the swiftness of a red dot sight while retaining the accuracy needed for precise shots.
The fully multi-coated, ultra-clear lens keeps its promise, delivering a wide, obstruction-free field of view.
Armortek coatings provide an additional layer of reliability, shielding the lens from oil, dirt, and scratches. This feature is particularly beneficial for those who shoot in diverse environments, from dusty ranges to occasional rainy days.
The Viper’s super low-profile design isn’t just for looks; it serves a practical purpose. Its minimal height ensures an unobstructed field of vision, a crucial factor when every moment counts. This feature proves invaluable in tactical scenarios and competitive shooting, where split-second decisions matter.
The Viper streamlines power and illumination adjustments with intuitive left-side up/down controls. You won’t find yourself fumbling with settings in the field or at the range.
Moreover, these controls are thoughtfully safeguarded to prevent accidental adjustments, adding to the optic’s user-friendliness.
Furthermore, the sight is both waterproof and shockproof, demonstrating resilience against recoil, bumps, and even unexpected rain showers.
Pros
- Compact and lightweight
- Fully Multi-Coated lens
- Easy to set up and use
- Crisp clear
- Unlimited eye relief
- Intuitive and protected controls
- Excellent adjustment
- Great battery life
Cons
- Limited accuracy for long-range shots
Crimson Trace RAD Pro
The final entry on our roster of exceptional red dot sights for the P320 is the Crimson Trace RAD Pro.
To start, mirroring the other sights on this list, the RAD Pro is a paragon of ruggedness and reliability. Its sight housing is expertly crafted from 7075 Aluminum, ensuring its durability.
The design also incorporates a square top shape with specific angles, bolstering its resistance to impact.
Moreover, it boasts waterproofing, capable of submersion in up to 1 meter of water.
The RAD Pro delivers on the battery life front, offering an extended runtime of approximately 40,000 hours. It comes equipped with an auto shut-off feature and a shake-to-wake function, both contributing to preserving battery life.
When the time comes for a battery change, the top-accessible battery compartment makes the process swift and hassle-free.
The RAD Pro features a 3 MOA dot reticle, falling within the 2-3.5 MOA range that’s often favored for its balance of tracking and precise aiming.
You may likely need an adapter plate to securely mount it onto your P320 slide.
Incorporating the innovative CT Radiant system, the Crimson Trace RAD Pro boasts an ambient light sensor that seamlessly fine-tunes the reticle’s brightness without manual intervention.
Whether you find yourself under the scorching sun or within the subdued illumination of an indoor range, the sight consistently excels in promptly and accurately adjusting the reticle’s brightness.
Pros
- Auto shut-off feature and a shake-to-wake function
- Long battery life
- Versatile 3 MOA dot reticle
- Quick installation and sighting in
- Water-proof
- Easy to adjust
- Red dot bright
- Effective ambient light sensor
- Affordable
Cons
- Might be ineffective in very low-light conditions
Holosun HS507C-X2
The Holosun 507C is swiftly gaining legendary status as a handgun optic, and I hold the firm belief that it stands as the finest budget-friendly option for the Sig P320.
There are several compelling reasons to favor the 507C. Although its sight housing is constructed from 7075-T6 Aluminum, as opposed to the titanium featured in the Holosun 508T, it remains a remarkably rugged and dependable optic.
Furthermore, the 507C incorporates Holosun’s Multiple Reticle System, providing users with a versatile selection. You can choose from a 2 MOA dot, a 32 MOA circle, or the Holosun Circle Dot Reticle.
With a total of ten daylight and two night vision brightness settings, the flexibility offered is truly remarkable. In terms of reticle brightness, it stands out as one of the most luminous I’ve come across.
This night vision compatibility serves as an additional advantage, particularly benefiting shooters dealing with astigmatism.
Just like the Trijicon RMR, SRO, and Holosun 508T, you may require an adapter plate to mount the 507C onto your P320.
In addition, the 507C boasts waterproofing up to 1 meter of water. While it might be marginally less robust than the 508T, it has garnered a solid reputation for durability and reliability in the realm of pistol red dot sights.
Similar to the 508T, the 507C offers an extended battery life, lasting around 50,000 hours. It also features Shake Awake technology, a Solar Panel for battery-free use, and a side-loading battery tray for hassle-free replacements when needed.
Pros
- Exceptional battery life
- Clear glass and crisp
- Budget-friendly
- Flexible multi-reticle system
- Durable
- Shake Awake feature
- Versatile brightness settings
- Convenient battery tray
- Solar Charging
Cons
- You may require an adapter plate to mount onto your P320.
In summary…
The Sig P320 is undoubtedly an outstanding handgun, and finding the right red dot sight to complement its capabilities is of paramount importance.
This thoughtfully curated list presents an array of choices, each with its unique set of features and advantages. Whether you prioritize ruggedness, precision, user-friendliness, budget-friendliness, or innovative technology, there’s an ideal optic to meet your specific requirements.
With these options, you can significantly enhance your shooting experience, achieving the perfect balance of speed and accuracy with your Sig P320.