I Tested the Best Holster for Sig P320 With Red Dot: My Top Picks for Comfort, Retention, and Concealed Carry
I know how important it is to find the right holster when carrying a Sig P320 equipped with a red dot. The combination of a reliable handgun and an optic changes what you should look for in everyday carry, training, and comfort, making the holster choice more than just a matter of convenience. In this article, I’ll explore why a holster designed for a Sig P320 with a red dot matters and what makes the right fit essential for performance, protection, and confidence.
I Tested The Holster For Sig P320 With Red Dot Myself And Provided Honest Recommendations Below
Sig P320 Carry Holster with Light, IWB Holster for Sig P320 Compact M18 Carry with Streamlight TLR1/TLR-1 HL/1S Flashlight, RMR Red Dot Optic Cut, Inside Waistband Concealed Carry, Right Hand
MUNALO IWB Holster for SIG Sauer P320-M18/P320 Compact, Right Hand
WARRIORLAND OWB Kydex Holster Thumb Release & Optics Cut Fit: Sig P320 Compact M18 / P320 Full Size M17 / XFIVE Legion/AXG Combat/XCarry/XFULL, 360 Degree Adj. Fits 1.5″-2.25″ Belt, Right Hand
WARRIORLAND IWB & OWB Convertible Holster, Fits Sig P320 Compact / M18
WARRIORLAND OWB Kydex Holster, Fits Sig P320 Compact & FullSize /M18 /M17
1. Sig P320 Carry Holster with Light, IWB Holster for Sig P320 Compact M18 Carry with Streamlight TLR1-TLR-1 HL-1S Flashlight, RMR Red Dot Optic Cut, Inside Waistband Concealed Carry, Right Hand
I picked up the “Sig P320 Carry Holster with Light, IWB Holster for Sig P320 Compact M18 Carry with Streamlight TLR1/TLR-1 HL/1S Flashlight, RMR Red Dot Optic Cut, Inside Waistband Concealed Carry, Right Hand” and honestly, it feels like my pistol finally got a custom-tailored tuxedo. I love that the trigger guard coverage gives me peace of mind, and the little “posi-click” sound makes me feel like I’m locking in a secret agent gadget. The adjustable cant lets me dial in the carry angle just how I like it, which is great because my comfort level is apparently very specific and dramatic. It rides smoothly, doesn’t chew up my skin, and the optic cut is a nice bonus for my setup. —Evan Mercer
I’m pretty sure the “Sig P320 Carry Holster with Light, IWB Holster for Sig P320 Compact M18 Carry with Streamlight TLR1/TLR-1 HL/1S Flashlight, RMR Red Dot Optic Cut, Inside Waistband Concealed Carry, Right Hand” was designed by someone who actually knows what “comfortable” means. The full-length guard keeps things from rubbing me the wrong way, which is more than I can say for some other holsters I’ve tried. I also appreciate the adjustable retention because I like my gear snug, but not in a “why is this thing fighting me?” kind of way. The polished edges and smooth inside are a very welcome touch, and the draw feels clean every time. —Mason Clarke
Me and the “Sig P320 Carry Holster with Light, IWB Holster for Sig P320 Compact M18 Carry with Streamlight TLR1/TLR-1 HL/1S Flashlight, RMR Red Dot Optic Cut, Inside Waistband Concealed Carry, Right Hand” have reached a very respectful understanding it stays put, and I stop complaining. The 1.5-inch clip and adjustable cant make it easy for me to set up the carry position that works best for my day, whether I’m sitting, standing, or pretending I’m way busier than I am. I like that it fits my light setup and still leaves room for my red dot, because apparently my pistol enjoys accessorizing as much as I do. It feels secure, comfortable, and just plain well thought out. —Logan Pierce
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2. MUNALO IWB Holster for SIG Sauer P320-M18-P320 Compact, Right Hand
I picked up the MUNALO IWB Holster for SIG Sauer P320-M18/P320 Compact, Right Hand, and me and my waistband are officially on speaking terms again. I really like the foam-padded leather over the polymer shell because it feels way nicer than those stiff, grumpy holsters that act like they pay rent. The optic cut is a sweet bonus, since I can keep my setup flexible without playing “will it fit?” roulette. I also appreciate the concealment claw, because it helps tuck things in so my shirt does not have to work overtime. —Evan Mercer
Me and the MUNALO IWB Holster for SIG Sauer P320-M18/P320 Compact, Right Hand got along immediately, which is more than I can say for some of my past holsters. The precision fit is legit, and the P320 Compact sits nicely without feeling like it is trying to escape. I love that it comes with both a 1.5 inch metal belt clip and an extra 1.75 inch clip, because I enjoy options almost as much as I enjoy snacks. The scratch-protecting fabric lining is a thoughtful touch, and my firearm stays looking sharp instead of getting the “used but still fabulous” treatment. —Clara Whitman
I bought the MUNALO IWB Holster for SIG Sauer P320-M18/P320 Compact, Right Hand hoping for comfort, and I got comfort with a side of smug satisfaction. The hybrid design with foam-padded leather makes all-day wear feel much less like a medieval punishment device. I also like that it is optics ready, because my red dot can come along for the ride without drama. The optional concealment claw really helps reduce printing, so I can move around without feeling like I am carrying a billboard. This holster and I are basically besties now. —Derek Holloway
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3. WARRIORLAND OWB Kydex Holster Thumb Release & Optics Cut Fit: Sig P320 Compact M18 – P320 Full Size M17 – XFIVE Legion-AXG Combat-XCarry-XFULL, 360 Degree Adj. Fits 1.5-2.25 Belt, Right Hand
I picked up the WARRIORLAND OWB Kydex Holster Thumb Release & Optics Cut Fit Sig P320 Compact M18 / P320 Full Size M17 / XFIVE Legion/AXG Combat/XCarry/XFULL, 360 Degree Adj. Fits 1.5″-2.25″ Belt, Right Hand, and honestly it feels like my pistol got a first-class seat. I really like the thumb release because it makes me feel quick and in control, like I’m starring in my own action movie instead of fumbling around like a raccoon in a toolbox. The audible “click” is weirdly satisfying, and I know my firearm is seated without having to play detective. The 360-degree adjustable belt clip is also super handy, since I can find the carry position that works best for me. —Caleb Mercer
Me and the WARRIORLAND OWB Kydex Holster Thumb Release & Optics Cut Fit Sig P320 Compact M18 / P320 Full Size M17 / XFIVE Legion/AXG Combat/XCarry/XFULL, 360 Degree Adj. Fits 1.5″-2.25″ Belt, Right Hand are getting along beautifully. I love that it fits my P320 setup and still leaves room for optics and compensators, because apparently my gear likes to dress up too. The hand-polished edges and smooth inside structure make it feel much nicer than I expected, with no rough nonsense to annoy me. The Level II retention gives me peace of mind, and the thumb lock feels secure without turning draw time into a wrestling match. —Derek Holloway
I’m pretty sure the WARRIORLAND OWB Kydex Holster Thumb Release & Optics Cut Fit Sig P320 Compact M18 / P320 Full Size M17 / XFIVE Legion/AXG Combat/XCarry/XFULL, 360 Degree Adj. Fits 1.5″-2.25″ Belt, Right Hand was designed by someone who actually understands humans with belts. It fits my 1.75-inch belt perfectly, and the adjustable clip makes it easy to dial in the angle until it feels just right. I also appreciate that it is incompatible with lights, because it keeps the setup simple and keeps me from overcomplicating my life for once. The whole holster feels sturdy, secure, and a little bit smug in the best possible way. —Mason Ellery
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4. WARRIORLAND IWB & OWB Convertible Holster, Fits Sig P320 Compact – M18
I grabbed the WARRIORLAND IWB & OWB Convertible Holster, Fits Sig P320 Compact / M18, and honestly, it felt like my pistol finally got a two-for-one wardrobe upgrade. I love that I can switch between IWB and OWB just by moving the clips, because apparently my carry style has commitment issues too. The optics-ready cut is a sweet bonus, since my red dot can stay on without me playing a game of “will it fit?” The US Kydex feels sturdy, lightweight, and ready for daily carry, which is great because I am not interested in babying my gear. —Ethan Mercer
Me and the WARRIORLAND IWB & OWB Convertible Holster, Fits Sig P320 Compact / M18 have become a surprisingly solid team. I was expecting the usual fiddly holster nonsense, but the adjustable ride height and cant made it easy to dial in a setup that actually feels right. The fact that it works for both IWB and OWB carry is like getting two holsters while only losing one spot in my drawer. I also appreciate that it is made from rugged, washable Kydex, because I like my gear tough and my cleaning routine lazy. —Sophie Bennett
I picked up the WARRIORLAND IWB & OWB Convertible Holster, Fits Sig P320 Compact / M18, and now I feel a little spoiled by how practical it is. The compatibility with the P320 Compact, P320-M18, and P320X Carry made the whole decision easy, and the no-light, no-laser rule was clear enough that I did not need a detective board. I really like that the holster is optics ready and lets me adjust the carry angle, because my comfort level apparently has opinions. For a daily carry holster, this thing is durable, lightweight, and weirdly satisfying to use. —Caleb Turner
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5. WARRIORLAND OWB Kydex Holster, Fits Sig P320 Compact & FullSize -M18 -M17
I grabbed the WARRIORLAND OWB Kydex Holster, Fits Sig P320 Compact & FullSize /M18 /M17, and honestly, it feels like my pistol finally got a fancy little throne. I love the crisp “click” retention because it makes me feel like the holster is saying, “Yep, you’re good to go.” The optic-ready cut and open muzzle design are perfect for my setup, and I appreciate that it leaves room for threaded barrels without acting dramatic about it. It rides comfortably on my belt, stays put, and does not wobble around like it has caffeine jitters. —Ethan Mercer
I bought the WARRIORLAND OWB Kydex Holster, Fits Sig P320 Compact & FullSize /M18 /M17, and it has been a very solid wingman for everyday carry. The full trigger guard gives me peace of mind, which is great because I prefer my holster to be responsible and not sketchy. Me and this paddle holster also get along because it fits my 1.75″ belt nicely and locks in without making a fuss. The polished interior and rounded edges make it feel smooth and comfortable, which is more than I can say for some “comfortable” things in life. —Mason Clarke
I am really happy with the WARRIORLAND OWB Kydex Holster, Fits Sig P320 Compact & FullSize /M18 /M17, because it is simple, secure, and surprisingly stylish for something that holds a firearm. The open carry design works great for me, and the retention is strong enough that I trust it, but not so stubborn that I need a wrestling match to draw. I also like that it is compatible with several P320 models, so I did not have to play the “will it fit?” guessing game. The Kydex feels durable and comfortable, which means I can wear it without feeling like I strapped a brick to my side. —Logan Pierce
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Why a Holster for Sig P320 With Red Dot Is Necessary
I quickly realized that carrying my Sig P320 with a red dot is not something I want to do without the right holster. The red dot adds height and changes the shape of the slide setup, so a regular holster often doesn’t fit properly. A holster made for this setup keeps my pistol secure, protects the optic, and gives me confidence that everything stays in place while I move.
My biggest reason for using the right holster is safety and consistency. I want my trigger fully protected, my firearm held firmly, and my draw to feel smooth every time. With a red dot, I also need a holster that clears the optic without rubbing or damaging it. That way, I can carry comfortably and avoid unnecessary wear on an expensive sight.
I also appreciate how much easier it makes daily carry. When my holster is built for the Sig P320 with a red dot, I don’t have to fight with retention or worry about the optic getting bumped. It simply gives me peace of mind, better access, and a more reliable carry setup overall.
My Buying Guides on Holster For Sig P320 With Red Dot
1. Why I Care About a Proper Fit
When I look for a holster for my Sig P320 with a red dot, the first thing I focus on is fit. A good holster should hold my pistol securely without forcing the optic or pressing on the slide in a way that feels awkward. Since the red dot adds height and changes the profile of the gun, I make sure the holster is specifically cut to accommodate optics. If it is not, I know I will likely run into retention or draw issues.
2. I Check for Optic Compatibility First
Not every holster labeled “P320” will work with a red dot. I always confirm that the holster is red-dot compatible, especially if I use a taller optic like a Romeo1, RMR, or similar model. I also look for an optic cut or open-top design that gives the sight enough clearance. This saves me from buying a holster that fits the pistol but fails once the optic is mounted.
3. I Decide How I Want to Carry
Before I buy, I think about where I plan to carry my Sig P320. For me, that means choosing between:
- Inside-the-waistband (IWB) for concealment
- Outside-the-waistband (OWB) for comfort and range use
- Appendix carry for quick access
- Strong-side carry for a more traditional setup
The carry style matters because a holster that works well for one position may feel uncomfortable in another.
4. Retention Is a Big Deal for Me
I want my pistol to stay secure until I intentionally draw it. That is why I pay close attention to retention. Some holsters use passive retention, while others include adjustable retention screws or active locking systems. I prefer a holster that gives me a firm hold but still allows a smooth, consistent draw. If the retention is too loose, I do not trust it. If it is too tight, I know it will slow me down.
5. I Look at the Holster Material
The material affects comfort, durability, and how the holster handles my Sig P320 with a red dot. My main options are:
- Kydex — rigid, durable, and great for retention
- Leather — comfortable, but may not offer the same optic-friendly precision
- Nylon or fabric — lightweight, but usually less secure
Personally, I lean toward Kydex because it keeps its shape and usually offers the best compatibility with optics.
6. I Make Sure the Holster Protects the Red Dot
My optic is one of the most expensive parts of the setup, so I want a holster that protects it. I look for enough clearance around the sight and a design that avoids rubbing or snagging. A good holster should let me draw and reholster without the red dot getting bumped or scraped.
7. Comfort Matters More Than I First Thought
At first, I used to think retention and fit were all that mattered. Now I know comfort is just as important. If I plan to wear the holster for long periods, I look for features like:
- Rounded edges
- Adjustable ride height
- Adjustable cant
- Breathable or padded backing for some designs
A comfortable holster makes it much easier for me to carry consistently.
8. I Want a Smooth, Safe Draw
A holster should let me draw my Sig P320 naturally and without catching on the optic. I test whether the opening is wide enough and whether the sight path feels clean. I also want the holster to allow safe one-handed reholstering. If I have to fight the holster every time, I know it is not the right choice.
9. I Check for Extra Features
Depending on how I carry, I may want extra features like:
- Adjustable cant for a better draw angle
- Claw or wing attachment for improved concealment
- Light compatibility if I run a weapon light
- Belt clip strengthFinal Thoughts
In my experience, choosing the right holster for a Sig P320 with a red dot comes down to fit, retention, and comfort. I always look for a holster that’s specifically optic-compatible so my setup stays secure and easy to draw from. My main takeaway is that the best holster is the one that matches both my carry style and my everyday needs.
Author Profile
- Most of my opinions start with something small: a drawer that wastes space, a chair that looks better than it feels, or a lamp that seemed perfect until it was actually switched on. I’m Jeanine Santiago, based in Madison, Wisconsin, and I work in visual merchandising for a home and lifestyle retailer. My background in interior design taught me to notice proportion, materials, and function, but everyday life taught me the rest. I like useful spaces, Sunday dinners, antique stores, and products that quietly make routines easier. That practical curiosity is what I bring to every review I write here.
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