Best SIG P320 Triggers (2022) – Buying Guide

Best Sig P320 Triggers feature image

Finding the best SIG P320 trigger may be a challenge for some gun owners. However, the search isn’t really going to be so tough if you understand how a trigger functions from the inside and out. It will take time and some research to make sure that you invest in the best trigger that can give you a smooth pull every time you use it.

What’s considered the most modular pistol on the market as of now? There are a lot of nominees out there for that title, however, one shines slightly above all others: the SIG Sauer P320. For its popularity, people will obviously look at its SIG Sauer P320 triggers that you can replace on the stock one.

The lighter the pull, the better chance you can rapidly get your initial and follow-up shots off. In order to assist you in finding the best trigger for your pistol, we have put together a list of some of the best SIG P320 triggers that are currently on the market as of this writing. At its core, the SIG P320 is a fire control unit. Basically, it is an AR lower receiver.

Keeping this in mind, you can eliminate the FCU and change it to and from a diversity of different size grip modules, slides, barrels, calibers, thumb safety, and much more. It’s like a game of Legos with many different parts for grown-up adults.

The SIG P320 can be any gun you want it to be. This firearm’s modular nature has, for obvious reasons, given us a huge market for upgrading and tuning this gun. Which can be confusing at times.

We have gathered a few of our favorite SIG P320 trigger upgrades – well, our favorite upgrades – and hit the ground running. Before we get to the best SIG P320 trigger list itself, we will talk about the kinds of P320 triggers you should consider and which features make a great trigger stand out among its peers.

TriggersNameEditor’s CommentRatingGet The Best Deal
Apex Tactical Specialties Inc – Action Enhancement Trigger

Most Recommended Option

1. Easy to install
2. Reduces pull weight by 20 percent
3. Very ergonomically friendly

Apex Tactical Specialties Inc – Advanced Flat Trigger1. Pull weight is much lighter than most triggers
2. Excellent for EDC, target shooting, and competition shooting
9.5/10SHOP NOW
Apex Tactical Specialties Inc – Advanced Curved Trigger1. Doesn’t bulk up or add any additional weight to the ​pistol
2. The trigger weight is quite lighter than the average factory triggers
9.0/10SHOP NOW
Apex Tactical Specialties Inc – Advanced Trigger with Forward Set Trigger Bar


1. Consistently pulls at around 5 pounds in weight
2. Super durable
3. Excellent for beginners starting out with the P320

8.5/10SHOP NOW
Sig Sauer – 320 Adverse Trigger1. Crisp trigger pull
2. It doesn’t wiggle around after installation
3. It allows for quicker follow-up shots
8.0/10SHOP NOW
Grayguns PELT Sig Sauer P320 Trigger1. No tools needed for installation
2. Pull weight is much lighter than factory default triggers
8.0/10Currently unavailable

The Reality: Why Bother Upgrading the SIG P320 Trigger?

Some people like to push things forward. Cars, tech, guns, you name it. Whatever you can think of can always be improved, and that includes the P320 SIG Sauer gun. You can take this P320 and make it entirely your own with custom upgrades, or you can think of putting some ease on your finger. The bottom line could be, why not upgrade a weapon from its factory trigger to something you wish it to be?

The Types of P320 Trigger Upgrade

Before getting to the reviews, there are a few different kinds of triggers in the gun world that are obtainable for the SIG P320. It’s vital to know which type exists so you know exactly which to choose based on your personal needs and preferences. Here are some of the most standard triggers that you need to know about:

Flat Trigger

The flat trigger is considered to make follow-up shooting really consistent. Their design is not curved like most triggers, and they are made to be much easier to use. Most flat-faced triggers are designed to make the flat-faced trigger more stress-free and reduce the amount of trigger finger fatigue that comes from extended shooting sessions.

Single-Action Triggers

Your single-action triggers are easy to use. All you need to do is cock the hammer back and pull its trigger. From there, the method is just to rinse and repeat. The trigger pulls on a single action will be quick and crisp. You probably won’t get too many creeps depending on which is best fitted on the pistol itself.

Double Action Triggers

The double-action triggers will have a much lengthier pull than the single-action triggers. Like the single action, you will need to cock the hammer back. However, the pull will not be as easy compared to its single-action counterpart. In the 1st stage, it will just be a preparation stage for the 2nd stage. It also functions as a safety feature. These are the triggers that are made to avert accidental discharges from happening. 

The Criteria: Factors That Make The Best P320 Trigger

There are some structures and characteristics that will make a trigger face stand out much better than its peers. You’ll need to keep a lookout on what they are so you can opt for the right trigger that will function the way you like it to. Here are the characteristics and features that make a brilliant trigger face better than most:

Light Pull Weight

On average, a factory default trigger will have a pull weight of approximately 8 pounds. As a rule of the thumb, the lighter the trigger pull from aftermarket triggers – the better chance you’ll quickly get a trigger travel shot off with thumb safety. So if you hold quick shooting to a high standard, then find yourself a straight trigger upgrade that has a light trigger pull weight.


Yes, know the price range that you are willing to spend on. Many see it as an investment but you have to know your part well. Gun lovers who have a collection of pistols would probably be aware of how an expensive option or a good product/company name doesn’t equate to performance or experience. People must be aware of the difference and spend wisely.


Most trigger kits will be manufactured from high-quality materials. This will definitely make the stock trigger hard-hitting and more resistant to scratches, over travel, scuffs, and other things that may otherwise damage the trigger itself. Most of these triggers will be made from steel and may be anodized for more protection.

Ease of Installation 

If you lack a good volume of gunsmithing skills, you may want to look into finding a drop-in stock trigger for your own use (and benefit). These are the types of triggers that can allow you to install them onto your pistol with great comfort. All it takes is a few minutes of your time and the correct kind of tools for the installation.

Top 6 Best SIG P320 Trigger Upgrade – Reviewed

You will find plenty of product reviews on the market about the best P320 trigger kits. You may feel confused by having so many reviews on a wide range of products, parts, and model options on so many websites. Fear not, as we are here to help you choose the best option you can ever find on our website.

1. Grayguns PELT SIG Sauer P320 Flat Trigger Kit

Grayguns PELT Sig Sauer P320 Trigger

A lot of newer buyers of this Grayguns SIG P320 trigger are happy to find a drop in trigger that not only is within their budget range (affordable), but really easy to install. Most are able to install it in less than five minutes or so. As soon as it was installed, the face trigger break-in period did not last very long. One gun user even said that it was much lighter than his last upgrade trigger. He also said that he was kicking himself for not choosing this trigger design sooner.

This Grayguns P320 trigger is probably one of the easiest triggers to install. Even with no tools, it’s quite striking. But nonetheless, it brings a much lighter trigger pull compared to your default factory triggers. The reduction is pretty much instant and quite noticeable even at the start. If that isn’t impressive enough, then we cannot tell you what else is.

This trigger will most likely be used by those who want to waste little to no time installing a trigger on their guns. It’s a drop it in and go kind of trigger. Therefore, it will help most shooters ranging from concealed carry shooters and casual target shooters. Regardless of who it is meant for, it will be a lot better than your average but the unsatisfactory trigger.

One suggested improvement for this Grayguns P320 trigger would be to lighten the trigger pull weight to make it friendlier for competition shooters. One way of doing this is by replacing its springs that can make it a bit lighter and more competition friendly. The more you pull the trigger, the better the spring will handle several amounts of pull.

If you are looking for a really good trigger that will be reliable, stress-free to use, and easy on the bank account, then the Apex Tactical Advanced Flat Trigger is most probably the trigger you will want to upgrade to. It’s the kind of trigger that will provide you with the performance that says “you get more than what you’ve bargained for”.

2. Apex Tactical Specialties Advanced Flat Trigger

Apex Tactical Specialties Advanced FLat Trigger


This trigger is a fan-favorite among most concealed carry pistol owners. They are looking for something that is easy to pull and very comfortable for when they want to use it for protracted target practice. One gun owner said that he is confident in making much faster shots if and when he has to in a self-defense situation.

This trigger is tough, reliable, and definitely gives you much lesser pull weight. Overall it’s how a trigger should function. On top of that, it’s backed by a lifetime warranty by the trigger’s manufacturer. This has the potential to stay with you for the long run, making it one of the best triggers to own if longevity is one of your top priorities.

This will be a trigger that can be used across all kinds of dissimilar shooter types. Whether if you are a concealed carry shooter or a competitive shooter – you name it. It’s the closest thing you can get your hands on to a multi-purpose trigger for a SIG P320 pistol. Furthermore, the pull weight is light enough to get the job completed no matter what the application is.

While there are no obvious cons, we can safely say that it can use some additional springs so that you can install them on the trigger if you want a bit more weight on the trigger pull. Not too much weight, but enough that can be considered “just right” for most gun users. Sometimes, a pull weight can be too light for some gun owners who are frequent shooters.

If you want a trigger that is outstanding across all kinds of applications, this Grayguns Pelt SIG Sauer Trigger may be exactly what you are looking for in a flat trigger. A flat trigger is easy to use and certainly gets the job done when you want it to.


3. Apex Tactical Specialties – Advanced Trigger with Forward Set Trigger Bar

Apex Tactical Specialties Inc - Advanced Trigger with Forward Set Trigger Bar


Most recent buyers of this forward set trigger bar are happy with this trigger kit. They are able to amass and put it all together in a matter of a few short minutes. As soon as it is assembled, the trigger is fully functional and has a nice toasty pull to it. The pull weight for most gun shooters is decent enough for most general uses.

The trigger kit comes together with your choice of either a curved design or an enhanced design. You can choose either one based on your own personal preferences or needs. Regardless of which one it is, you still have a trigger that has a pretty good pull weight for you to work around with. Aside from all of that, it’s really easy to assemble it that even a newbie can do it.

This trigger kit is flawless for beginners starting out with the P320 pistol. It can also be used by those who have no gunsmith skills and want something that can be easy to put together. Once assembled, they can take pride in knowing they have assembled a light and simple to use forward set trigger bar. As for its applications, it’s pretty much used across the board.

One possible improvement can be to make sure that the break-in will be much quicker. It may be a little exasperating for the new users. The sooner they can break it in, they will be much better off.

If you are looking for a bit of a challenge, a trigger assembly kit can be what you are looking for. As soon as you have put together this Apex Tactical trigger, you will be dying to install it right in your pistol and be ready to take it for a test shoot. Once you get used to it, you will not be able to stop depending on it.


4. Apex Tactical Specialties – Action Enhancement Trigger


People who bought this enhancement SIG P320 trigger are able to use this trigger without many problems. The installation process is pretty quick and easy for most gun users. As soon as it is installed, the trigger pull reduction is very noticeable. Even one gun user said that he was completely taken aback and surprised by how much lighter it is compared to his previous trigger pull.

This SIG P320 trigger bar is by far the best overall in terms of its performance. The pull is decent but light enough to make your shots way faster than factory default triggers. To put it simply, it’s a major upgrade compared to what is rolled off of the assembly line. The straight design is much more different than your regular curved triggers. And that makes the trigger’s useability a lot easier.

This SIG P320 trigger will be used by almost anyone who is using a P320 gun. This includes concealed carry users, casual target shooters, and even those who will use the pistol for home defense purposes. Because of its ease of use, it can be best used by those who will waste little to no time in pulling the trigger pull.

A possible improvement will be to lighten up on the weight of the trigger pull. This will make it slightly easier for those who are competing in shooting competitions. Yes, it’s lighter than usual but it probably won’t be enough for those who want to get an upper edge on the competition.

If you want a trigger that is considered one of the best in the market, then you’d be crazy enough to pass up on the opportunity to have a look at the Apex Tactical Action Enhancement Trigger a little closer. While it may not be your average pistol trigger, it works a lot superior than any pistol trigger that comes right out of the box.


5. SIG Sauer – P320 Adverse Trigger Kit


Many gun lover are looking for a forward set trigger bar that is much lighter in pull weight and more reliable overall. However, they didn’t have to look too far. They went straight to the trigger source. The SIG Sauer Adverse trigger is a lot better overall. The pull weight is light and it was a quick and easy pull that produced quick shots for most gun users. One gun user said it is great to use when shooting targets in a timed session.

Sometimes, it’s good to get a new trigger right from the manufacturer themselves. This trigger somehow does a much better job and has a healthier design than most of the factory default triggers that come with your pistol. Furthermore, this trigger bar is easy to install and doesn’t take too long to switch out your old trigger for a newer one.

This will be a great choice for those who want to easily switch out their old trigger with a factory replacement. It’s the sort of trigger that can mostly benefit the concealed carry crowd among most SIG P320 owners. Consider this the better and lighter version of the same triggers you may be using right now.

Despite no obvious disadvantages, we may consider the idea of recommending a possible inclusion of another accessory that can go along smugly with a factory replacement trigger. We are thinking of a factory replacement safety just in case the original safety on your trigger may not be compatible or match-worthy. That way, you will have a trigger safety that’s easy to use and much flawless in switching back and forth.

If you are looking for a new trigger and wouldn’t mind a factory replacement, then this SIG Sauer Adverse Trigger may be good enough to switch out your underwhelming factory default trigger for something that is better, stronger, and lighter. Don’t be surprised if the pull weight is much nimbler upon initial break-in.


6. Apex Tactical Specialties Advanced Curved Trigger


A lot of buyers of Advanced Curved Trigger bar are able to use this trigger with little to no issues at all. The installation of an Apex trigger is quick and easy and the break-in is pretty quick too. Most are able to get used to the trigger after about shooting 100 rounds in. The pull weight from the start is light but got even lighter as it is used more over time. One user even said that it was the easiest and lightest trigger he has ever used to date.

This version of Advanced Curved Trigger bar is made from one of the most industry-leading brands: Apex Tactical. If you are familiar with the brand, you will know that the apex trigger is reliable, easy to install, and easy to use. We like this curved trigger because it has these capabilities to make shooting much easier for most SIG P320 users. We never choose a good trigger bar based on its name alone.

This trigger bar will be used by just about anyone who has a P320 pistol. After all, it can fit every single one on this planet. So expect it to be a curved trigger bar that can be used by all types of shooters across many usages. Don’t be surprised if it ends up as the “best overall” choice sometime in the future.

Once again, the trigger pull weight can be a little lighter. It’s not too heavy or too light, even then some users will be a little fussy about it. Another alternative will be to include some springs that may allow them to easily switch out one for the other if they want a lighter pull weight.

If you are a fan of the Apex Tactical brand and want an option that will be useful for any P320 pistol that is currently available, the Advanced Curved Trigger bar may just be your cup of coffee. You can call it the most universal trigger kit for the pistol itself if you want to.



The bottom line is that there are plenty of great triggers you can find for your SIG 320 models that can give you a run for your money. It can get pretty confusing and give you a lot of handgun questions. However, we hope this review will answer some of those firearms issues. 

Frequently Asked Question (FAQs)

What is the best SIG Sauer P320 Trigger Upgrade?

There are plenty of trigger kits with great performance that work. It all depends on what you are looking for – a trigger guard, aftermarket parts, trigger weight, grip module, competition trigger kit, fire control group, factory trigger, SIG 320, thumb safety, P320 X series, face trigger, color options, Apex trigger, finger placement, pistols and gun products with great customer ratings, muzzle devices, triggers made of stainless steel, trigger swap, and a lot more.

How to Install a SIG P320 Trigger?

The installation process of SIG aftermarket trigger can be easy if you follow the following steps. Before you begin, ensure the SIG P320 is unloaded  for safety purposes.

If disassembled, install the trigger spring and hammer on the side of the housing. Install the trigger by attaching it directly to the housing. Generally, the trigger attachment pin should should go through the hole. Ensure the trigger and the hammer are in contact and secured which includes the pins and holes. Repeat this step a few times by pulling on it. Proceed to adding the trigger assembly to the lower receiver of the pistol and check thoroughly. Once completed, your trigger system is good to go.

Leave a Comment