Best P365 Upgrades [2026]
We've been carrying a P365 for a while with tons of rounds through it and plenty of tested upgrades. Here's some that we use on the daily.
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The P365 has been one of the top-selling guns for nearly a decade, creating a massive aftermarket that's left us asking: What are the best P365 upgrades?
I used to tinker as a hobby, but these days I'm a bit more conservative about how I upgrade my gun. My guiding methodology these days is to identify weaknesses and correct them while only investing in upgrades that offer a noticeable improvement to a gun's performance.
With that in mind, I've rounded up my favorite Sig P365 upgrades. So, keep reading if you're looking for accessories or inspiration.
The Quick List
- Best Red Dot: Holosun EPS CarryJump to Details ↓
- Best Conversion Kit: Tyrant CNC TWS365 Sig P365 PDW ChassisJump to Details ↓
- Best Weapon Light : Streamlight TLR-7X SUBJump to Details ↓
- Best Suppressor Height Sights : SIG XRAY 3 SightsJump to Details ↓
- Best Magazine Upgrade: Sig Sauer P365 MagGuts+2Jump to Details ↓
- Best Holster: Safariland Incog XJump to Details ↓
- Best Magazine Alternative: Magpul AMAGJump to Details ↓
Table of Contents
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Sig Sauer P365 Upgrades Comparison Chart
| Price | Use | Reliabilty | Usefulness | |
|---|---|---|---|---|
| Holosun EPS Carry | $388 | Red Dot | 9/10 | 10/10 |
| Armory Craft Trigger Return Spring | $7.95 | Internal Upgrade | 10/10 | 10/10 |
| Streamlight TLR-7X SUB | $145 | Weapon Light | 9/10 | 6/10 |
| Sig Sauer XRAY 3 Suppressor Height Sights | $99 | Iron Sights | 10/10 | 8/10 |
| MagGuts +2 | $33 | Increase Capacity | 8/10 | 8/10 |
| MCARBO Short Stroke Trigger | $79 | Flat-Faced Trigger | 10/10 | 7/10 |
| Magpul AMAG | $34 | Magazine | 10/10 | 8/10 |
| Tyrant CNC T.W.S. 365 | $599 | PDW Chassis | 9/10 | 7/10 |
How We Tested The Best P365 Upgrades
A diverse group of upgrades deserves a diverse testing procedure. The one factor each of these picks was extensively tested for was reliability.
I'm willing to bet a nickel that most people carry a P365 for defensive use, and as such, it has to be reliable.
With that in mind, I installed the upgrades and threw rounds downrange to see if/when they tap out. This included hundreds of rounds through the AMAGs from Magpul, nearly a thousand with the MagGuts, and well over a thousand with the EPS.
The AMAG and MagGuts were exposed to the fine sand that makes up my range after reloads. I've yet to clean either, and they keep functioning.
I've done countless dry-fire draws from the IncogX, not just the P365 Incog, because I own a few of them for various platforms. It's given me more than a sample size of one to draw data from.
I shot the T.W.S. 365 to the point that the gun was too fouled up to function, thanks to the blowback created by a suppressor. I dropped some oil in the gun, cycled the slide a few times, and got right back at it.
Beyond reliability, I wanted to ensure that each upgrade makes a difference when used with your P365.
Does it meet its promises? Does it stand out in a crowded field of P365 upgrades? If the answer was no, it didn't make the list.
Best Sig Sauer P365 Upgrades & Accessories
1. Holosun EPS Carry - Best P365 Red Dot
Quick Verdict: The Holosun EPS Carry isn't just the best red dot for the P365, but I think the EPS series is the best pistol red dot on the market. It's small, enclosed, uses common footprints, and while it might cost a little more, it's a performer.
Pros
- Enclosed emitter
- Bright reticle
Cons
- Expensive
- Requires suppressor height sights for cowitness
Specs
- Footprint: RMSc/Holosun K
- Battery Life: 50,000 hours
- Brightness Settings: 12 total
- Weight: 1.23 ounces
Why We Love It
I'm all in on enclosed emitters. I live in a state with unpredictable weather, and after seeing my dot wash out during a class where it rained, I decided enclosed emitters were for me.
The Holosun EPS Carry fits the RMSc footprint, so it dropped right on my Sig P365.
I've used the EPS Carry for several years now, and it's yet to fail me. It's got a fairly clear lens, a bright dot, easy-to-use controls, and allows for fast, precise shooting at five yards and out to 50 and beyond.
The EPS Carry comes in a few configurations, including a multi-reticle option, but I don't have a need for a dot and circle reticle on my carry gun. I went with the 6 MOA dot, but if I did it again, I'd probably pick the 2 MOA dot model for a smaller, more precise dot.
It comes with all the Holosun features you love. A great emitter, shake-awake, side-loading battery, and a fairly low deck height. The side-loading battery tray is its biggest weakness. Those little screws can come undone and yeet themselves into oblivion.
For more on the Holosun EPS Carry, check out our full review!
| Reliability | Clarity | Value | Overall |
|---|---|---|---|
| 9/10 | 9/10 | 6/10 | 8/10 |
2. Tyrant CNC T.W.S. 365 - Best Conversion Kit
Quick Verdict: The Tyrant CNC T.W.S. 365 takes your subcompact pistol and turns it into a lightweight, compact PDW. The T.W.S. 365 extends your range, your control, and overall accuracy, but you'll pay a hefty price to do so.
Pros
- Increases range
- Better accuracy
- Modular
- Fast-deploying brace
Cons
- Expensive
- Can't conceal in holster on body
Specs
- Material: Polymer/Metal
- Weight: 10.7 oz
Why We Love It
I'm a PDW nerd. I love the idea of a super compact platform that could be concealed inside a bag that extends your range, your accuracy, and overall control. The T.W.S. 365 makes use of the P365's removable fire control unit to give one of the most interesting grip modules on the market.
The T.W.S. 365 can use any of the P365 slides, including the short 3.1 model. The system comes with a spring-loaded brace that deploys rapidly with the press of a button. It uses an XMACRO length grip and puts a spare magazine holder up front so you can double up on the ammunition.
The T.W.S. 365 allowed me to reach out to 100 yards on a piece of IPSC-sized steel. It dropped rounds beautifully into the target. I had to aim at the head to hit somewhere on the torso; by God, I made those hits.
The brace allows for much better stability and recoil dispersion. It opens with ease, but make sure you don't get anything stuck in the pinch point. The up-front magazine holder is nice, but if you want to reduce bulk, you can just remove it. The same goes for the integrated blast shield.
There's a degree of modularity the T.W.S. 365 offers that's nice to see. Strip it down, or stack it up; it works either way. The downside to this whole setup is the overall price. At $600, this is not a cheap upgrade. I didn't pay that much for my P365 in the first place.
You can learn more about the Tyrant in my full review!
| Reliability | Ergonomics | Ease of Installation | Value | Overall |
|---|---|---|---|---|
| 9/10 | 8/10 | 9/10 | 4/10 | 7/10 |
3. Streamlight TLR-7 X SUB - Best Weapon Light
Quick Verdict: The TLR-7 X SUB proves that big things come in small packages. While 725 lumens mixed with 7,700 candela isn't a duty-powered light, it's more than capable for concealed carry.
Pros
- Fits P365 proprietary rail
- Provides 775 lumens and 7,700 candela
- Ambidextrous controls
Cons
- Adds bulk to gun
- Requires light bearing holster
Specs
- Lumens: 775
- Candela: 7,700
- Weight: 2.64 oz
- Length: 2.51 inches
- Battery Life:1 hour
Why We Love It
Streamlight's TLR-7 X SUB is the latest generation of subcompact weapon lights. We've come a long way since micro lights were glorified pen lights. The TLR-7 X SUB throws enough light for indoor use and typical concealed carry ranges.
To maximize power, you have to use an SL-B9 rechargeable battery, but you can hot-swap to a standard CR123 at the cost of dropping down to 500 lumens. Not a bad trade-off in a pinch.
The light throws a wide beam that tends to be on the cooler side of the light spectrum. It does have more of a focus on flood than on throw, but that's what we want with a pistol weaponlight.
Speaking of trade-offs, you are adding bulk and weight to a subcompact pistol. I don't think everyone needs a weapon light on all their guns, but if you tend to be out when the sun's down more than the sun's up, it might be worth the weight.
| Reliability | Ergonomics | Value | Overall |
|---|---|---|---|
| 9/10 | 8/10 | 8/10 | 8/10 |
If you're looking for more pistol lights, there are more recommendations in the Best Pistol Lights, or you can check out the video below!
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4. SIG XRAY 3 Sights - Best Suppressor Height Sights for Sig P365
Quick Verdict: The SIG XRAY 3 sights offer a slightly taller sight, perfect for use with a red dot sight. They're big, bright, and work regardless of the lighting conditions.
Pros
- Bright in all conditions
- Cowitnesses with red dots
- Metal construction
Cons
- Pricey
- Creates an interrupted view in windwo
Specs
- Front Sight Height: 9.5mm
- Rear Sight Height: 10.59mm
Why We Love It
Two is one, and one is none. For a defensive pistol, having a backup to your red dot that's usable on the fly. The XRAY sights sit tall enough to see through your red dot should it ever fail.
SIG makes these sights from steel, so they're rugged and reliable. A set of tritium lamps glows in low light, and a bright ring around the front sight makes it visible in normal lighting conditions.
Iron sights don't have to be fancy, but they have to be reliable, and that's exactly what the XRAY 3 sights provide.
The downsides are a cluttered sight picture. That's the downside of carry optics and cowitness sights.
| Reliability | Ergonomics | Value | Overall |
|---|---|---|---|
| 9/10 | 8/10 | 6/10 | 8/10 |
5. MagGuts +2 - Best Magazine Upgrade for P365
Quick Verdict: The MagGuts is a drop-in install that replaces your magazine spring with the inside of an accordion and increases capacity without increasing magazine size. A couple of extra rounds will take you quite far.
Pros
- Expands magazine capacity
- Easy to install
- Reliable
Cons
- Gets expensive
- Needs to be tested with your ammo
Why We Love It
Why do we love the Sig P365? It's the capacity in relation to the size of the gun.
The MagGuts make it easy to increase that capacity even more without increasing the gun's overall size. The MagGuts give you +2 to 10-, 12-, and 15-round magazines.
I've been using them for years and haven't run into any issues. They've been left loaded, dropped in sand, and cycled thousands of times. Every round feeds, and the slide always locks to the rear when the last round is fired.
While mine have been perfectly reliable, there is always a risk in changing out OEM parts and pieces in critical parts of your firearms. Make sure you test them extensively to ensure proper function with your firearm.
| Reliability | Value | Overall |
|---|---|---|
| 8/10 | 5/10 | 7/10 |
6. Safariland IncogX - Best Holster
Quick Verdict: Modern guns require modern holsters, and the IncogX provides a light-bearing and optics-ready option with an optional magazine caddy.
Pros
- Optional mag caddy
- Comfortable external suede
- Weapon light capable
Cons
- Plastic clips
- Requires cleaning
Specs
- Material: Bolatron
- Retention: Adjustable Passive
Why We Love It
The IncogX gives us a modern AIWB holster for daily carry of your gun, your optic, your light, and even a spare magazine. Safariland might have made its name with duty holsters, but the IncogX has made an impression on the AIWB market.
Little things like the adjustable strut enhance concealment by driving the grip into the body to prevent printing. The clips are adjustable for height and cant, allowing you to customize fit better and ultimately enhance concealment and access.
This rig disappears under a T-shirt, and I've never had a problem getting a proper grip on the gun and getting it in action.
On the outside, we have a microfiber suede finish to limit hotspots and increase comfort. When I pack my P365XL, this is the rig I go with. I don't use the mag caddy; I find it to be a bit pokey, but having options is always nice.
As a Floridian, sweat is always a concern, and any kind of fiber can absorb sweat to make a stinky holster, so I have to make sure to clean mine after a long day outdoors.
| Reliability | Comfort | Modularity | Value | Overall |
|---|---|---|---|---|
| 10/10 | 8/10 | 8/10 | 6/10 | 8/10 |
If you're looking for other holsters, check out our recommendations for the Best AIWB and Best Concealed Carry Holsters.
7. Magpul AMAG - Best Magazine Alternative
Quick Verdict: Sig magazines are expensive, and aftermarket options aren't always as reliable. Unless it's Magpul, the P365 AMAG gives you the reliability you need at a lower price than OEM.
Pros
- Quality construction
- Witness holes to see how many rounds are in the mag
Cons
- Not OEM
- Tough to load at first
Specs
- Capacity: 10, 12, 15, 17
- Material: Aluminum
Why We Love It
I get that making reliable, well-made magazines can be tough to do, but man, are Sig's OEM options expensive. Luckily, Magpul has decided they can make more than polymer magazines and have begun creating the AMAG line, or aluminum magazines.
With the popularity of the Sig P365, it's no surprise that one of their first AMAGs was for the P365. They make AMAGs for every size P365, from the flush-fit 10-rounders to the XMACRO-ready 17-round magazines.
These are sleek and slick mags that drop free with ease, provide reliable feeding, offer witness holes for every round, and are considerably cheaper than SIG OEM magazines. I've been using a pair of the 17-rounders for about eight months now.
These things have been covered in dirt and debris, dropped in sand, and tossed in a range bag. Honestly, I treat them poorly, but they just keep working. I won't say they are better than OEM, but they seem to be just as reliable, and they're cheaper.
The downside is a bit of uncertainty about how they'll function with aftermarket baseplates, springs, followers, etc. Keep that in mind if any of that is critical to you. Even if you don't trust aftermarket magazines for defensive use, these make one helluva good training magazine.
| Reliability | Ergonomics | Value | Overall |
|---|---|---|---|
| 10/10 | 7/10 | 8/10 | 8/10 |
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8. MCARBO Short Stroke - Best Flat Trigger
Quick Verdict: I'm not a trigger snob, and I think the P365's trigger is perfectly fine, but there are some benefits to the MCARBO Short Stroke flat-faced trigger that can't be ignored.
Pros
- Decreases trigger reach
- Improves control
- Better trigger pull
Cons
- Requires installation
- Not for everyone
Specs
- Material: 4140 Steel
- Finish: Black Nitride
- Weight Reduction: ½ Pound
Why We Love It
I don't buy into the idea that a new trigger will make you a better shooter. A smoother, crisper trigger isn't going to make up for bad habits or a poor grip. That doesn't mean that a new trigger doesn't have other benefits.
The MCARBO Short Stroke trigger shortens the shooter's reach to the trigger. The P365 is already a great gun for shooters with small hands, but this trigger takes it a step further. The Short Stroke trigger makes it easier for folks with small hands to reach the trigger.
The trigger has 33% less travel compared to the OEM trigger. It promises better leverage and control, and that's typically one of the big benefits of a flat-faced trigger. These benefits won't make you a better shooter, but a nicer trigger is always a nicer trigger.
It's not the cheapest option, and you need to know what you're doing when you start making serious modifications. Take your time, read the instructions, and take it to the range to make sure it runs.
I'll admit this trigger's not for me; I'm team 2XL gloves, but if you have trouble reaching the P365's trigger, the MCARBO Short Stroke trigger is worth a look.
| Reliability | Ergonomics | Trigger Improvement | Ease of Installation | Value | Overall |
|---|---|---|---|---|---|
| 10/10 | 8/10 | 7/10 | 6/10 | 6/10 | 8/10 |
9. Armory Craft Trigger Return Spring - Best Internal Upgrade
Quick Verdict: The Armory Craft Trigger Return Spring does a lot of things: it makes your trigger crisper, your reset more tactile, and cleans up mush. Most importantly, it improves the reliability of your P365.
Pros
- Durable design
- Improves trigger pull
- Better reset than standard trigger
- Affordable
Cons
- Installation is in-depth
Why We Love It
One of the downsides to the SIG P365 is the trigger return spring. It tends to break a little too often. While it seems to have affected early production guns more often than later production guns, the Armory Craft Trigger Return Spring is a cheap and easy upgrade to keep your Sig running reliably.
The fact that the Armory Craft Trigger Return Spring improves your trigger pull by 10%-15% is a nice touch. It's also not going to compromise your reliability with cheap, hard-primed ammo. I know I'm not the only one still running steel-cased garbage for most of my shooting.
Installation pings moderately difficult on the frustration meter. The FCU construction makes things a little more complicated, but following a YouTube video will make life a lot easier.
| Reliability | Ease of installation | Trigger Improvement | Value | Overall |
|---|---|---|---|---|
| 10/10 | 5/10 | 10/10 | 10/10 | 8/10 |
Who Should Buy P365 Upgrades
If you've found a problem, be it personal or inherent to the P365, you should consider an upgrade to fix it. If the gun isn't working for you, but you feel it can be fixed, there's a big aftermarket out there that could provide a fix.
If you have a specialized need for an upgrade, then you should pursue it wholeheartedly. If you work a night shift and carry when the sun is mostly down, a light might be a necessity. If your P365 doubles as your home defense gun, then a weapon light is a necessity.
Upgrades that can make the gun easier to use, like a flat trigger or red dot, aren't necessary in most cases, but can improve the weapon's performance more than enough to justify its purchase.
If the P365 just doesn't work for you for whatever reason, maybe it just has too much recoil; you might have a hard time upgrading past that. This might require a different gun.
On the complete opposite end of the spectrum, if your P365 is just right for you the way it came, then keep it stock; there isn't an inherent need to upgrade the P365.
How to Choose the Best P365 Upgrades
My motto is to tinker with a purpose. When I upgrade my gun, I want the upgrade to make sense, to truly improve the gun.
I head out to the range, shoot the gun, shoot it a lot, and start looking for weaknesses and ways to improve it despite them. This is the critical first step too many people ignore.
They get the gun and just start slapping accessories on before they even know how the gun handles. The downside tends to be spending money on the wrong areas while ignoring the gun's pitfalls. A lot of people treat tinkering as the goal rather than the shooting.
(I'm guilty of this myself, so no judgment.)
If I identify a weakness, I look for a way to fix it. It might be an ergonomic issue reaching the trigger or a gun's inherent weakness, like a weak spring. Those are my priorities, and they can be personal to the shooter and not universal.
Some upgrades aren't tied to a gun's weakness but can improve its performance overall. The most common is the addition of a red dot. Shooters armed with a red dot-equipped handgun tend to be able to shoot faster, further, and with greater accuracy.
If I've identified weaknesses or located a few general-purpose upgrades that benefit the P365, I can now start looking for accessories.
My priority will be reliability. Are the products well-made by a reputable brand with a history of success? Past behavior is the best indicator of future behavior, and reputations are often hard-won.
I also consider their inherent downsides.
If I add a light and red dot to a P365, I've increased its overall bulk, and it's a gun made for concealment. Is the bulk worth the capability they add?
I'm also looking to see if one P365 upgrade requires another. Mounting a red dot means I need to look into iron sights I can co-witness with, so now one upgrade is too. If I add a light, do I need a new holster?
These are the considerations that guide me in choosing the best P365 upgrades. They can be personal, and no two people may have the same answer, but that's how it should be.
FAQs
Final Thoughts
The Sig P365 is one heckuva gun. Sg created an entire genre of handguns when they released the P365, and the micro-compact design has become mainstream in the world of concealed carry guns. That kind of domination has created a massive aftermarket and a lot of temptation to tinker.
With that in mind, tinker with a purpose. Choose upgrades that provide a tangible benefit, be it for an individual use case or the general improvement of the gun itself.
What's your go-to P365 Upgrade? Let us know in the comments below. Curious about the history of the P365? Check out our article on the evolution of the P365.