7 Best Red Dot Sight for Sig P320 RX

The best red dot sight for Sig P320 RX. significantly enhances your shooting experience by enhancing target acquisition speed and accuracy in different lighting conditions. This guide explores the best red sights compatible with the Sig P320 RX.

For a handgun as versatile as the Sig P320 RX, adding accessories that complement its design is crucial for pushing it to its full potential. Red dot sights are handy accessories for this handgun. They balance durability with lightweight construction while aligning with your shooting needs whether it is self-defense, competition, or recreational use.

However, finding the best red dot sight for your Sig P320 RX can be a daunting task, given the broad variety of options on the market. To help, we will walk you through the best models available considering essential factors such as durability, ease of installation, reticle clarity, battery life, and overall performance.

Let’s dive right in.

Best Red Dot Sights for Sig P320 RX

1. Sig Sauer ROMEO1PRO 1x30mm 3 MOA 

Best Red Dot Sight for Sig P320 RX

 

 

Specifications

  • Objective Lens Diameter: 30 mm
  • Reticle: 3 MOA
  • Brightness Settings: 12
  • Adjustment Click Value: 1 MOA
  • Battery Life: 20000 hours
  • Water Resistance Level: IPX-7
  • Length: 1.8 in
  • Weight: 0.06 lbs

Designed specifically for Sig Sauer pistols, the ROMEO1PRO is the best red dot sight for Sig P320 RX. It offers a 3 MOA red dot, ensuring quick target acquisition and precision shooting at close and medium ranges.

The red dot sight is built with durability in mind. Its aircraft-grade aluminum housing provides unmatched durability with dependable corrosion resistance and water resistance. It also includes a ruggedized protective shroud in the box for added protection.

Another impressive feature is the TruHold Lockless Zeroing System that ensures consistent performance in the field. The Motion Activated Illumination System increase performance and accuracy while the molded glass aspheric lens provides superior light transmittance and zero distortion.

Above all, this sighting tool ensures rapid target engagement under a full range of lighting conditions with the new point-source emitter provides brightness day or night with 12 brightness settings (10 Daytime/2 NV) and 20,000 hours of runtime.

Pros

  • Easy to install
  • Durable aircraft-grade aluminum construction
  • Compatible with night vision gear
  • Dependable waterproof and fog-proof performance
  • Straightforward to operate

Cons

  • Battery life

2. Aimpoint ACRO P-2 Red Dot Sight

Aimpoint ACRO P-2

 

 

Specifications

  • Objective Window Size: 15×15 mm
  • Reticle: 3.5 MOA Dot
  • Brightness Settings: 10
  • Adjustment Click Value: 2 cm at 100 m
  • Operating Temperature: -45 – 71 Celsius
  • Length: 1.9 in
  • Height: 1.2 in
  • Weight: 2.1 oz

The Aimpoint ACRO P-2 Red Dot Sight is a standout optic whose quality and performance are hard to beat. It is well-built with cutting-edge features to hone your shooting skills.

As an upgraded version of the original ACRO P-1, the P-2 addresses many of its predecessor’s limitations while setting a new benchmark for compact red dot sights. With its robust aluminum housing, it is built to withstand the rigors of heavy use, making it an ideal choice for law enforcement, military, and competitive shooters. Besides, the fully enclosed emitter design ensures reliability in all weather conditions, protecting the internals from dirt, dust, and water.

This red dot sight is rated for submersion up to 25 meters. The 3.5 MOA red dot is crisp and bright, providing quick target acquisition and excellent visibility in various lighting conditions. Moreover, it features a long battery life with 50,000 hours of continuous use on a single CR2032 battery.

The sight is also built with user-friendly features for added convenience. It is compatible with a wide range of mounting solutions and features intuitive brightness adjustment settings that allow for seamless transitions between bright daylight and low-light environments.

Pros

  • Compact and lightweight
  • Battery can be quickly changed without removing optic
  • Intuitive and user-friendly design
  • Robust aluminum housing
  • Bright and crisp reticle

Cons

  • Big budget

3. Holosun HS507C X2 Open Reflex Pistol Sight

Holosun HS507C X2

 

 

Specifications

  • Reticle: Green 2 MOA Dot & 32 MOA Circle
  • Battery Life (Hours): 50000
  • Brightness Setting: 10 DL & 2 NV Compatible
  • Window Size: 0.63×0.91
  • Housing Material: 7075 T6 Aluminum
  • Surface Finish: Anodize
  • Adjustment per Click: 1 MOA
  • W&E Travel Range: ±50 MOA

Holosun HS507C X2 Open Reflex Pistol Sight is an open reflex sight designed for full-sized pistol applications. This handgun sight features a Lock Mode that locks the buttons preventing inadvertent setting changes and multi-reticle system for versatile use.

The HE507C-GR X2 pistol sight features Holosun’s Green Super LED with up to 50k hour battery life. With the long battery life, it guarantees reliable performance during length shooting periods.

Furthermore, the durable housing is made from 7075 Aluminum which is rigid enough to withstand abuse. This optic is also fully waterproof and weather-resistant to ensure use even in adverse weather conditions.

The other essential features included are a side-mounted tray for easy replacement when needed, shake awake technology, and solar failsafe.

Pros

  • Functional and easy to install
  • Durable and reliable construction
  • Easy battery access
  • Long battery life
  • Multi-reticle system

4. Vortex Venom 1×26.5mm Red Dot Sight

Best Red Dot Sight for Sig P320 RX

 

 

Specifications

  • Fabric/Material: Aluminum Alloy Chassis
  • Objective Lens Diameter: 26.5 mm
  • Brightness Settings: 10
  • Adjustment Type: MOA
  • Adjustment Click Value: 1 MOA
  • Battery Life: 150 – 30000 hours
  • Length: 1.9 in
  • Height: 1.02 in
  • Weight: 1.1 oz

Next up, we have the Venom Red Dot Sight 3 MOA. This red dot sight promotes rapid target acquisition while providing a precise point of aim.

Vortex optics are known for their quality construction and this model is not any different. It is built with an aluminum housing that ensures it stands up to whatever you throw at it. Furthermore, the weatherproof construction guarantees unimpeded performance in all weather conditions. 

Optical clarity is another feature that makes it the best red dot sight for Sig P320 RX. It boasts high quality, fully multi-coated lenses that offer a clean, wide field of view. Besides, the power and dot intensity controls are conveniently located on the left side of the sight to choose between 10 brightness levels.

The Venom also has an auto-brightness mode that uses an ambient light sensor to control dot intensity if the shooter prefers. The 1 MOA wind age and elevation adjustments are super sleek and make sighting in a breeze. Over and above that, the top load system makes changing the CR1632 battery a breeze, as you will not have to remove your sight to change the power source.

Pros

  • Great optical quality
  • Ease of use
  • Reliable and well-made reliable
  • Quick and straightforward to install

Cons

  • Limited battery life

5. Leupold DeltaPoint Pro

Leupold DeltaPoint Pro

 

 

Specifications

  • Fabric/Material: Aluminum
  • Objective Lens Diameter: 0.71 – 1.05 in
  • Reticle: 2.5 MOA Dot
  • Brightness Settings: 8
  • Adjustment Click Value: 1 MOA
  • Battery Life: 300 hours
  • Length: 1.82 in
  • Height: 1.3 in
  • Weight: 1.95 oz

Carrying the renowned Leupold name, the DeltaPoint Pro 2.5 MOA red dot sight stands out as a premium optic designed for shooters who demand reliability, durability, and performance.

One of the most impressive features is its crystal-clear glass, which provides a crisp and distortion-free view. The large field of view complements the crisp optics ensuring rapid target acquisition. Additionally, the 2.5 MOA dot strikes the perfect balance between precision and speed, making it suitable for both close-quarters engagement and longer-range accuracy. The dot is easy to acquire even in bright sunlight, thanks to the sight’s robust brightness settings, and it retains clarity in low-light conditions.

Regarding construction, the lightweight yet rugged aluminum housing is built to withstand rough use. It is also fully waterproof and weather-resistant to handle extreme conditions without compromising performance.

Another standout feature is its user-friendly design. The top-loading battery compartment allows for quick battery changes without removing the sight from the firearm hence preserving zero. The motion sensor technology is a practical touch, as it activates the red dot when movement is detected and extends battery life when idle. Installation is also straightforward with no special tools needed.

Pros

  • Outstanding build quality
  • Ease of installation
  • Great value for the price
  • Bright and clear optics
  • Holds zero under intense shooting

Cons

  • Short battery life

6. Steiner Micro Pistol 1x20x16mm Reflex Red Dot Sight

Steiner MPS

 

 

Specifications

  • Objective Window Size: 0.63 x 0.83 in
  • Reticle: 3.3 MOA
  • Adjustment Type: MOA
  • Battery Life: 13000 hours
  • Operating Temperature: -40 – 140 Fahrenheit
  • Length: 2.17 in
  • Weight: 2.05 oz

The Steiner Micro Pistol 1x20x16mm Reflex Red Dot Sight delivers exceptional performance for those seeking a lightweight, durable, and highly reliable aiming solution. It is designed and built with user convenient features to enhance your shooting precision.

Right out of the box, the compact design of the sight impresses, fitting seamlessly on most pistols without adding unnecessary bulk. Though compact, the sight doesn’t cut corners on durability. Its aluminum housing feels robust and well-constructed, ensuring resistance to recoil and daily wear.

Furthermore, the 1x magnification paired with the 16mm objective lens offers a crisp and wide field of view, making it ideal for both quick target acquisition and more precise aiming. The red dot is also sharp, with adjustable brightness settings that cater to various lighting conditions.

The simplicity of its controls is another highlight that ensures easy operation, even for users new to reflex sights. The sight’s parallax-free design ensures accuracy no matter your shooting angle while the excellent battery life provides extended operation without the need for frequent replacements.

Pros

  • Outstanding durability
  • Easy to use
  • Excellent battery life
  • Sharp reticle
  • Incredibly compact and lightweight

Cons

  • No Shake Awake feature

7. Trijicon RM06 RMR Type 2 3.25 MOA Red Dot Sight

Trijicon RM06 RMR Type 2 3.25 MOA

 

 

Specifications

  • Objective Lens Diameter: 16 mm
  • Reticle: 3.25 MOA Red Dot
  • Brightness Settings: 8
  • Adjustment Click Value: 1 MOA
  • Battery Life: 4 Years at setting 4
  • Length: 1.8 in
  • Weight: 1.2 oz

Developed to improve precision and accuracy, Trijicon RM06 RMR Type 2 3.25 MOA is the best red dot sight for Sig P320 RX for rugged use. It is crafted with durability in mind to withstand abuse and rough handling.

The sight employs a crisp 3.25 MOA red dot perfect for fast target acquisition, offering a balance between precision and speed. The auto-brightness adjustment feature ensures that the reticle is always visible, adapting to different lighting conditions for optimal performance. Additionally, the RM06 features a longer battery life, which is an important upgrade for users who rely on their gear for extended periods.

Well, that’s not all. This red dot sight is also equipped with an adjustable windage and elevation system that allows for precise adjustments, ensuring the red dot stays aligned with your point of impact. Moreover, its compact size and lightweight design make it easy to mount with no special tools needed.

All these handy features combined with the sight’s superior glass quality ensures clear and crisp visuals, even in low-light conditions.

Pros

  • Durable, anodized aluminum housing
  • Crisp 3.25 MOA red dot for fast target acquisition
  • Auto-brightness and manual adjustment for varying lighting conditions
  • Excellent battery life with efficient power consumption
  • Reliable performance in harsh conditions

Cons

  • 3.25 MOA dot may not be ideal for ultra-precise long-range shots

Why a Red Dot Sight for Sig P320 RX?

A Red Dot Sight for the SIG P320 RX offers several advantages, especially for those using the pistol for competitive shooting, tactical applications, or self-defense. Adding a quality model to your SIG P320 RX can be beneficial in the following ways:

Faster Target Acquisition

A Red Dot Sight provides a clear aiming point superimposed over the target. This aids in faster target acquisition as it eliminates the need to align front and rear sights manually.

Improved Accuracy

With a Red Dot Sight, you can maintain a more consistent sight picture. This often leads to improved accuracy, especially during rapid fire or when shooting at moving targets.

Reliable Performance in Low Light Conditions

Furthermore, red dot sights are equipped with adjustable brightness settings, which makes them effective in both bright and low light conditions.

Enhanced Situational Awareness

With a red dot sight, you can shoot with both eyes open. This is advantageous for maintaining situational awareness, especially in dynamic environments.

Reduces Eye Strain

With a Red Dot Sight, you don’t need to focus on aligning traditional iron sights. This reduces eye strain, especially during extended shooting sessions.

Increased Confidence

The best red dot sight for Sig P320 RX can boost confidence in your shooting skills, whether for training, defense, or competition.

Criteria for Choosing the Best Red Dot Sight for Sig P320 RX

When looking for the best red dot sight for the Sig P320 RX, consider the following key factors to ensure compatibility, durability, and performance.

Mounting Compatibility

Mounting compatibility is the first thing to take into consideration. The Sig P320 RX comes with a built-in optic cut, so you need a red dot sight that fits the specific mounting pattern of the P320 RX. Check whether the sight is compatible with the P320’s MOS (Modular Optic System) or comes with the appropriate mounting plate.

Durability

The best red dot sight for Sig P320 RX should be durable enough to withstand recoil and harsh environmental conditions. Look for models with robust, shockproof designs, and those built with high-quality materials like aluminum or polymer. Additionally, ensure the optic is operable in adverse weather conditions.

Reticle Type

The reticle type (dot size, shape, and brightness levels) should suit your shooting style. A small 2 or 3 MOA dot is typically ideal for precision shooting, while large 4 MOA or 6 MOA dots are be better for rapid target acquisition and for users with aging eyes.

Battery Life

The battery life of red dot sights varies from one model to the other. Choose a model that offers long-lasting battery life, especially if you plan on using it for extended shooting sessions. Look for models with automatic brightness adjustment and longer battery life up to 50,000 hours or more.

Lens Clarity and Coating

Lens clarity  is crucial for target acquisition and it can make or break your shooting expedition. Look for optics with clear glass and coatings that reduce glare and improve contrast in various lighting conditions. Multi-coated or anti-reflective lenses are highly recommended.

Adjustability

Ensure the sight offers easy and precise windage and elevation adjustments. It should be simple to fine-tune the reticle for different shooting distances. Additionally, the best red dot sight for Sig P320 RX should feature more than 8 brightness settings for reticle visibility in different lighting conditions.

Size and Weight

The weight and size of the red dot sight should not significantly alter the balance or handling of your Sig P320 RX. A lightweight and compact sight is recommended as it does not negatively impact your ability to aim and shoot.

Price and Warranty

Lastly, consider your budget and the warranty offered by the manufacturer. Higher-end red dot sight come with a longer warranty and superior build quality but tend to be pricier. Choose based on your needs and preferences.

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FAQs

  • What is the ideal dot size for a red dot sight on the Sig P320 RX?

The ideal dot size generally depends on personal preference and intended use. A smaller dot of 3 MOA and below is an excellent choice for precision shooting while larger dot of 4 MOA or 6 MOA are ideal for faster target acquisition, better for close-range shooting and dynamic engagements.

  • Should I go for a reflex sight or a holographic sight for the Sig P320 RX?

Reflex sights  are often preferred for pistols, as they tend to be more compact and lighter than holographic sights. Holographic sights on the other hand are typically larger and might offer a wider field of view, but they are generally more common on rifles than pistols.

Final Words

Red dot sights enhance the SIG P320 RX’s performance, providing faster, more accurate shot while increasing overall shooting confidence. All the models mentioned above come with the basic features you need to push the performance of your pistol a notch higher and make every shooting a success. Hopefully, you are now able to find the ideal model for your needs.