Hey there, fellow shooting enthusiasts! Now, I’ve spent countless hours at the range testing various handguns, and the SIG P320 has proven itself to be a stellar performer time and time again. But the right red dot sight really takes this gun to the next level.
Trust me, I’ve tried many. After all that hands-on testing, one sight stood head and shoulders above the rest: the Trijicon SRO.
So, when I say the Trijicon SRO was my top choice for Best Red Dot For Sig P320 in 2023.
Alright, we’re going to take a close look at the best red dot sights suited for the SIG P320. I’ve invested the time, done the research, and performed hands-on tests to give you a rundown you can rely on.
Top 6 Best Red Dot Sights for P320
| Product | Key Features | Rating |
| Trijicon SRO Sight | Unobstructive field of view Crisp Dot hassle-free zeroing Same Footprint Aa RMR | 4.6 |
| Leupold DeltaPoint Pro | Battery saving Motion Sensor Diamond Coat Aspheric Lens scratch resistant tool-less battery access Rugged 100% waterproof construction | 4.8 |
| Sig Sauer Romeo 1 Pro | superior light transmittance Lockless Zeroing System return to zero multiple brightness settings Motion Activated Illumination System | 4.7 |
| Vortex Venom | Lightweight and easy to mount Versatile reticle options (3 MOA and 6 MOA) Efficient brightness adjustment (manual and automatic modes) Durable aluminum build Affordable pricing | 4.7 |
| Vortex Optics Viper | low-profile making ultra-clear lens unobstructed field of view Armortek coatings lens Hard anodized finish Waterproof and shockproof | 4.7 |
| Burris FastFire III | Pinpoint Accuracy 3 MOA dot Shockproof design lightweight highly durable and shockproof | 4.5 |
1. Trijicon SRO – Premium Option
The Trijicon SRO offers a large field of view that is parallax-free, combined with an ultra-crisp red dot. Windage and elevation adjustments are super easy, thanks to its tool-less design.
It’s designed to fit various handguns and even uses the same footprint as RMR for easy mounting.
Why to Buy: Look, this sight is a game-changer for serious shooters. Its fine-tuned illuminated reticle provides a crystal clear target image, making your shooting experience top-notch.
The adjustable brightness levels are quick to change, and they work great in different lighting conditions. The quality? Impeccable.
If you have the budget, this sight is well worth the investment.
Why Not to Buy: Let’s talk about the elephant in the room: the cost. This isn’t a budget-friendly sight by any means.
Plus, you’ll need to shell out extra for the RMR adapter plates if you want it to fit perfectly on your SIG P320. So, be prepared for those added expenses.
Who Should Buy: Are you a professional shooter or a serious hobbyist who wants the best of the best? Got some extra cash to spare? This sight is for you.
Its high-end features provide the kind of performance that just can’t be beaten. It’s perfect for those who don’t want to compromise on quality and are willing to pay for it.
Personal experience
I’ve field-tested this baby on my SIG P320, and it was a dream come true. The sight picture was the crispiest I’ve ever seen.
Target acquisition was a breeze, and the 2.5 MOA red dot did its job excellently in all lighting conditions. It was also pretty simple to maintain.
Pros
- Long battery life
- Night vision compatible
- Exceptional quality
- 5-year warranty
- Waterproof
Cons
- Expensive
- Needs a special adapter
2. Leupold Deltapoint Pro – Solid Build red dot
The Leupold DeltaPoint Pro sports a 2.5 MOA red dot with a sleek matte finish. Built, designed, and assembled in the USA, it comes with professional-grade optics and an illuminated reticle.
One standout feature? Its Motion Sensor Technology (MST) that extends battery life. Top-loading battery access and 1 MOA click adjustment add to its appeal.
Why to Buy: Let’s get real; this sight is impressive. Its MST feature is a game-changer, extending your battery life significantly.
The top-loading battery compartment? Super convenient. What I admire the most is its accuracy and bright, clear optics. If you’re tired of sights that fall short, you’ll find the Leupold DeltaPoint Pro a refreshing and reliable change.
Why Not to Buy: Okay, let’s talk about money. This sight comes with a hefty price tag. It’s not your entry-level sight, so if budget is a concern, you might want to look elsewhere.
While it offers a ton of high-end features, the cost could be a barrier for some.
Who Should Buy: This is it if you’re a serious shooter and want a sight that won’t let you down. The quality is exceptional and fits the SIG P320 without any modifications.
It’s pricey, but the performance and reliability justify the cost. It is ideal for both hunters and tactical users who aren’t willing to compromise on quality.
Personal experience
After testing this sight on my SIG P320, I can confirm that it lives up to the hype. The motion sensor feature worked like a charm, and the 2.5 MOA red dot made target acquisition quick and easy. It’s also incredibly durable, handling a variety of conditions without any issues.
Pros
- Bright glass, crystal-clear view
- Motion detection feature
- Works well in low-light conditions
- No modification is required for SIG P320
Cons
- High price tag
3. SIG Romeo1 Pro – Best Compatibility
The Sig Sauer Romeo 1 Pro comes equipped with a 6 MOA red dot and a sleek black steel shroud. What stands out? Its molded glass aspheric lens is designed for top-notch clarity.
Add in the TruHold Lockless Zeroing System and multiple brightness settings, and you’ve got a solid piece of equipment. Oh, and let’s not forget its Motac, the Motion Activated Illumination System.
Why to Buy: This is the guy you bring home to meet the family—especially if your family consists of other Sig Sauer products. The compatibility with nearly all 320 models is seamless, eliminating the need for special adapter plates.
You’ve got that TruHold system making sure your zero stays put, even after a recoil. The light transmittance and lens clarity? Off the charts are good.
Why Not to Buy: Alright, here’s the rub—the battery life leaves something to be desired. When you’re spending good money on a high-quality sight, you kind of expect it to last the distance in every aspect, battery included. For some, this could be a deal-breaker.
Who Should Buy: If you’re a die-hard Sig fan, this is a no-brainer. You don’t need to get into slide milling or worry about fit. It’s practically a plug-and-play situation.
Also, if you’re into powerful firearms like the SIG P320, the rugged design and aircraft-grade aluminum are going to be a huge plus.
Personal experience
I’ve field-tested the Romeo 1 Pro on my SIG P320, and let me tell you, it delivers. The sight picture is crisp, and acquiring targets felt like a walk in the park.
I also had zero issues with recoil affecting my zero, thanks to the TruHold system.
Pros
- Easy windage and elevation adjustments
- Built from aircraft-grade aluminum
- No modifications are needed for SIG P320
- Incredibly rugged
Cons
- It could use some battery life improvement
4. Vortex Venom – Good for Beginners
Vortex Venom is a solid choice for anyone looking to add a red dot sight to their SIG P320. It has an automatic illumination mode, unlimited eye relief, smooth windage, and elevation adjustments.
Made from durable 6061-T6 Aluminum, it’s both shock and water-resistant. The reticle comes in two sizes, 3 MOA and 6 MOA, and it has a battery life ranging from 150 to 30,000 hours.
Why to Buy: First off, compatibility is a big deal, and Vortex Venom pairs nicely with the SIG P320. The reticle options cater to various shooting needs. Trust me, it’s incredibly versatile! Additionally, it’s lightweight, which won’t throw off your aim.
The unlimited eye relief makes it super comfortable during extended periods of shooting. Plus, its battery life is no joke. Automatic brightness adjustment is pretty nifty, especially if you’re transitioning between different lighting environments.
Why Not to Buy: Alright, let’s be real here. While the Venom has many strong points, it’s not perfect. The lens cover could be better in terms of quality. Also, the window size might not suit everyone; it’s not as large as some competitors.
You might find it a bit limiting if you’re a purist who loves super-wide views. Finally, though the aluminum build is durable, it’s not exactly military-grade.
Who Should Buy: If you’re a SIG P320 owner looking to elevate your shooting experience, then this sight is a strong contender.
Beginners will find it user-friendly, while seasoned shooters will appreciate its durability and customization options. Long story short, it’s for shooters who want reliability without the bells and whistles.
Personal experience
I strapped this bad boy onto my SIG P320 and headed to the range. The sight was easy to install and felt right at home on my gun.
Target acquisition was quick, and the red dot was crisp. Even after multiple rounds, it held its zero like a champ. In short, it’s a reliable piece of equipment that enhanced my shooting experience.
Pros
- Lightweight and easy to mount
- Versatile reticle options (3 MOA and 6 MOA)
- Efficient brightness adjustment (manual and automatic modes)
- Durable aluminum build
- Affordable pricing
Cons
- A protective lens cover could be better
- The viewing window isn’t as expansive as some would like
5. Vortex Viper – Best Budget Option
Vortex Venom is a solid choice for anyone looking to add a red dot sight to their SIG P320. It has an automatic illumination mode, unlimited eye relief, smooth windage, and elevation adjustments.
Made from durable 6061-T6 Aluminum, it’s both shock and water-resistant. The reticle comes in two sizes, 3 MOA and 6 MOA, and it has a battery life ranging from 150 to 30,000 hours.
Why to Buy: First off, compatibility is a big deal, and Vortex Venom pairs nicely with the SIG P320. The reticle options cater to various shooting needs. Trust me, it’s incredibly versatile! Additionally, it’s lightweight, which won’t throw off your aim.
The unlimited eye relief makes it super comfortable during extended periods of shooting. Plus, its battery life is no joke. Automatic brightness adjustment is pretty nifty, especially if you’re transitioning between different lighting environments.
Why Not to Buy: Alright, let’s be real here. While the Venom has many strong points, it’s not perfect. The lens cover could be better in terms of quality. Also, the window size might not suit everyone; it’s not as large as some competitors.
You might find it a bit limiting if you’re a purist who loves super-wide views. Finally, though the aluminum build is durable, it’s not exactly military-grade.
Who Should Buy: If you’re a SIG P320 owner looking to elevate your shooting experience, then this sight is a strong contender.
Beginners will find it user-friendly, while seasoned shooters will appreciate its durability and customization options. Long story short, it’s for shooters who want reliability without the bells and whistles.
Personal experience
I strapped this bad boy onto my SIG P320 and headed to the range. The sight was easy to install and felt right at home on my gun.
Target acquisition was quick, and the red dot was crisp. Even after multiple rounds, it held its zero like a champ. In short, it’s a reliable piece of equipment that enhanced my shooting experience.
Pros
- Lightweight and easy to mount
- Versatile reticle options (3 MOA and 6 MOA)
- Efficient brightness adjustment (manual and automatic modes)
- Durable aluminum build
- Affordable pricing
Cons
- A protective lens cover could be better
- The viewing window isn’t as expansive as some would like
6. Burris FastFire III – User-Friendly
The Burris FastFire III is a versatile, lightweight red dot sight equipped with a 3 MOA dot reticle. With tool-less windage and elevation adjustments, you can fine-tune this optic on the fly.
It comes with three brightness settings, perfect for various lighting conditions. Plus, it includes a Picatinny mount, making it easy to install on a range of firearms, including the SIG P320.
Why to Buy: Alright, let’s get down to business. This sight is a game-changer, especially for folks with astigmatism. You get four levels of reticle brightness, which is awesome for any lighting condition. It’s lightweight and super easy to use.
On top of that, the price won’t leave your wallet crying—it’s far more budget-friendly than big names like Leupold or Trijicon but offers nearly the same features. Trust me, it’s a bang for your buck!
Why Not to Buy: But hold on, nothing is perfect. One major downside is the battery life; it’s not the greatest. If you’re planning an extended trip, you’d better pack some extra batteries.
Plus, the included Picatinny mount is okay, but you might want to invest in something more robust if you’re going to put this sight through rigorous use. Just something to think about, okay?
Who Should Buy: If you have less-than-perfect eyesight or wear glasses, this sight is your new best friend. It’s also great for competitive shooters who need quick target acquisition without breaking the bank.
Basically, if you want top-notch features without the top-tier price, the FastFire III should be at the top of your list.
It works well as a primary sight on the SIG P320 and is worth considering, even if you’re just getting into red dot sights.
Personal experience
So, I took the plunge and mounted the FastFire III on my SIG P320. Straight up, it delivered.
The 3 MOA dot made target acquisition a cinch and the tool-less adjustments? A lifesaver. Even with my not-so-perfect eyesight, I was hitting my marks easily.
Pros
- Good value for money
- Lightweight construction
- Easy to use
- Affordable
Cons
- Mediocre battery life
Comparison and Rating Table
| Red Dot Sight | Compatibility | Durability | User-Friendliness | Brightness Settings | Price | Total Rating |
| Trijicon SRO | 10 | 10 | 9 | 10 | 8 | 9.4 |
| Leupold Deltapoint Pro | 9 | 9 | 9 | 9 | 7 | 8.6 |
| Vortex Venom | 8 | 8 | 9 | 9 | 8 | 8.4 |
| Vortex Viper | 8 | 7 | 8 | 8 | 9 | 8.0 |
| Burris FastFire III | 8 | 8 | 8 | 8 | 9 | 8.2 |
Verdict
After extensively testing various red dot sights on my SIG P320, it’s clear that each sight comes
with its own set of perks and drawbacks.
Some are tailor-made for the pros out there, while others are perfect for those just getting their feet wet in the world of shooting. The balance between performance and budget varies, and that’s why it’s crucial to know your individual needs and preferences.
All that said, the Trijicon SRO emerges as my top choice. It nails the perfect balance of functionality, durability, and usability.
Whether you’re a seasoned pro or a casual shooter, there’s something on this list for everyone.
FAQs
What red dots are compatible with SIG P320?
Every red dot sight listed above is compatible with SIG P320.
Is SIG P320 optic-ready?
Yes, SIG P320 is optic-ready, offering a hassle-free experience for mounting a red dot sight.
What red dot sight will fit the SIG M18?
The SIG M18 has different requirements, so don’t rely on the red dot sight models listed above for your SIG P320.
