Best SIG P320 Upgrades: The Path to Perfection

When it came out in 2014, the SIG P320 quickly became one of the most famous handguns available. It’s a modular gun, which means you can change out the grip, slide, and barrel to make it fit your needs.

I like the SIG P320 because it is easy to use, accurate, and dependable. Also, it’s very easy to hold, even for long periods. I have used it for hunting and shooting at targets, and it has always worked perfectly.

The safety measures of the SIG P320 are one of the things I like best about it. It has a striker-fired action, which means that you can only fire it by pulling the trigger. Even when it’s full, this makes it very safe to carry.

Then why do you need an upgrade?

By upgrading your SIG P320, you can make it more accurate, make it easier to use, and make it work with more devices. Match-grade barrels, adjustable triggers, and red dot sights are some aftermarket parts that can help improve precision. When the P320 is upgraded, it can be made more reliable, accurate, and flexible.

Sig P320 Trigger Upgrade

Upgrading the trigger on a SIG P320 can make it more accurate, faster, easier to handle, and have less recoil, among other things. A lighter, crisper trigger pull can help with accuracy and reduce recoil, while a shorter trigger travel and a more positive reset can improve speed.

This product is for you if you need something extra to make you feel safe and give you full control over your gun. It has several features that will make shooting easier and more fun. So, let’s see what it has to give.

1. Apex Tactical Advanced Flat Trigger

Apex Tactical Sig P320 9mm Advanced Flat Trigger

The flat shape of the trigger makes it easier and more natural to place your finger on it, which can make the trigger pull lighter and sharper. This can make it easier to aim and reduce recoil, both of which are important when you’re out shooting.

Up to 35% of the weight of pulling the trigger will be taken away by this trigger, making it easier and smoother to shoot. It also cuts down on the length of the reach, making it easier and more accurate to pull the trigger.

The steel melonite used to make the trigger makes it strong and long-lasting, even if it is used often. It also has a more positive reset and a shorter trigger trip, which lets you shoot again faster and with more control. This can be especially helpful when hunting animals that you have to shoot quickly and accurately.

SIG P320 Grip Module

The handgun part of the Sig Sauer P320 pistol can be taken off of the P320 frame, so the frame can be taken out of the interior chassis system. This is what makes the Sig Sauer P320 gun stand out. With this feature, you can change the length of the gun, add a different grip module, and so on to make it fit your needs.

In the next few lines, I’ll give you a list of some great alternatives to the Sig P320 frame that you can use as grip modules.

1. SIG SAUER P320 AXG Carry Medium Grip Modules

Sig Sauer P320 AXG Carry Medium Grip Module

You might want to try these Grip Modules.

The aluminum used to make the AXG grip module not only looks great but is also very strong. It’s been carefully machined with deep undercuts and a long beavertail for a comfy, ergonomic fit. This means that you can shoot for longer without getting tired or feeling uncomfortable.

The grip module also has Black G10 grip panels from Hogue that can be switched out and a Medium Black back strap, so you can make the grip fit your hand perfectly. This will help you be more accurate and in control of your gun, which is very important when you’re shooting.

The SIG SAUER P320 AXG Carry Medium Grip Module is made to give your P320 that high-quality, easy-to-shoot SIG SAUER feel. When you put your P320 FCU (firing control unit) into the AXG grip module, you’ll feel like you’re shooting a classic metal frame pistol, both in terms of style and shooting.

It’s important to know that the 9mm,.357 SIG, and.40 AUTO slide and barrel are needed for the SIG SAUER P320 AXG Carry Medium Grip Module. So, if you’re already using one of these slides and barrels, you’re good to go.

2. SIG SAUER P320 X-Series Grip Module Assembly

Sig Sauer P320 X-Series Grip Module Assembly

This grip module kit is made to be used with your P320/P250 firing control unit. It lets you turn your gun into a P320 or P250 compact chambered in 9mm, 357 Sig, or .40auto with the grip size you choose. This means that you’ll have more choices when it comes to making your gun fit your wants.

As for the grip module unit itself, it is made of polymer, which is a strong and lightweight material. This means it will hold up well even if you use it a lot and won’t make your gun heavier than it needs to be.

The grip module that comes with it is also a great feature because it lets you quickly switch between different grip sizes to find the one that fits your hand best. This could make a big difference in how well and accurately you can shoot.

SIG P320 Barrel Upgrade

By upgrading the barrel on your SIG P320, you can make the gun more accurate, reduce recoil, and make it last longer. A good barrel can make the fit between the bullet and the gun tighter, which makes it easier to shoot accurately. A heavy or fluted barrel can cut down on recoil.

1, Faxon Firearms P320 Compact Flame Threaded 9mm Barrel

Faxon Firearms P320 Compact Flame Threaded 9mm Barrel

The barrel is made of high-quality 416-R stainless steel, which is known for being strong and resistant to rust. This means that your new barrel will last longer and work better than the old one.

The barrel is also flame-fluted, which means that lines have been cut into it to make it bigger. This helps heat escape faster, making it less likely that the barrel will boil and make it last longer.

This barrel is strong and can get rid of heat, and it also has a 1:10 barrel twist and standard rifling. This means that the bullet will be more stable and accurate as it goes down the gun. This will make shooting more accurate and precise.

The 11-degree target crown on this barrel makes sure that the bullet comes out of the barrel in a uniform and predictable way. This makes the shot groups smaller and makes the aim better.

Lastly, the barrel is threaded at -28 TPI, which lets you connect different muzzle devices like suppressors or compensators if you want to.

SIG P320 Compensator Upgrades

A compensator is a device that reduces recoil and muzzle rise by redirecting the gases expelled from a gun’s barrel when firing. Upgrading a SIG P320 with a compensator can provide faster follow-up shots, improved accuracy, and reduced felt recoil. It is important to research and consider individual needs before making any upgrades and prioritize safety when handling firearms.

I’m talking about the carry comp, which is something you can add to your gun before you put on a compensator. Even though your barrel is threaded, putting this on your P320 will make the compensator work better overall.

1. Springer Precision Sig P320 9mm Open Compensator

Springer Precision Sig P320 9mm Open Compensator

The Compensator could be a good choice. This compensator is made for the factory-threaded barrels of the SIG P320 with the M13.5 x 1 LH thread pattern, so it will fit properly with your gun.

The compensator is made of polished aluminum from the United States. This makes it light and durable. The compensator only weighs 1.32 ounces, so it won’t make your gun much heavier.

Now, let’s talk about why this compensator is a great addition to your gun. It is made to work with 9mm major ammo or factory +p ammunition. When you shoot these kinds of ammunition, the muzzle flip and recoil will be less. This means it will be easier to stay on goal and much faster to shoot again.

But please keep in mind that you can’t use this compensator with guns that have a 1/2 x 28 thread. So, if the thread design on your gun is different, this compensator won’t work for you.

SIG P320 Sight Upgrades

Adding high-quality sights to your SIG P320 can improve its performance and your shooting experience by a lot. High-quality sights can improve your accuracy, make it easier to find your target, give you more choices, last longer, and let you customize them. This upgrade is important for your success and safety in the field, and it can improve your accuracy, speed, versatility, and total shooting experience.

I offer you the Romeo 1 Pro red dot sight for your Sig P320 pistol because it is the sight that works with the P320 the most.

1. Sig Sauer SOR1P100 Romeo1Pro Red Dot Sight

Sig Sauer SOR1P100 Romeo1Pro Red Dot Sight

The molded glass aspheric lens with high-performance coatings is one of the best things about this update. This makes sure that more light gets through and there is no blurring, which is important for shooting accurately.

The TruHold Lockless Zeroing System is another great thing about it. This uses two adjustment springs that are made to handle the recoil of a pistol and go back to zero after each shot. This means that you’ll always hit your target and won’t have to keep adjusting your eyes.

With its different brightness settings, the MOA red dot makes it easy to quickly lock on to a target in a wide range of lighting situations. The point-source emitter has 12 brightness sets (10 Daytime/2 NV) and a runtime of 20,000 hours or more, so you won’t have to worry about not being able to see when you need to.

Also, the Motac (Motion Activated Illumination System) is a great feature that turns on when it notices motion and turns off when it doesn’t. This saves battery life and makes sure your sight is always ready to go when you need it.

SIG P320 With Lights

If you are a hunter, adding a light to your SIG P320 can make a big difference out in the field. Light can help you see better in low light, scare away animals, make you more accurate, and keep you safe. For the best effects, choose a light that is bright, strong, and easy to use.

1. SureFire X300U-A Ultra High Output 1000 Lumens LED Weapon Light

SureFire X300U-A Ultra High Output 1000 Lumens LED Weapon Light

The SureFire name is dependable and can be counted on. This tactical light has a white LED that shines at 1000 lumens for 1.5 hours, which is enough to stun and blindside your target if you need to.

The TIR lens technology also gives off a tight, focused beam with a strong light around it, which will help your peripheral vision when hunting in low light. This makes it easy to find your target and shoot straight.

Also, the switch can be used by either hand, which makes it easier to turn the light on and off with one hand. Also, you can use the optional DG grip switches on pistols like the P320 and the pressure tap switches on long guns, so you can make it fit your needs.

Lastly, 123A batteries can stay good for up to 10 years, so you never have to worry about running out of power when you’re out hunting. Overall, the Surefire X300U-A Ultra Weaponlight is a great choice for upgrading your SIG P320 gun, and I think you’ll be very happy with your purchase.

2. Streamlight 69400 TLR-7 Sub 500-Lumen Pistol Light

Streamlight 69400 TLR-7 Sub 500-Lumen Pistol Light

This pistol light is made to help you see better and aim better, which is very important when shooting, especially when there isn’t much light. The high-power LED can make a very bright light, which lets you see your goal very well.

The fact that this light is small and very light is one of its best features. It won’t make your gun heavier than it needs to be, which is great when you’re in the field for a long time. Also, the light can be used easily by both right-handed and left-handed shooters because it can be used by either hand.

Another great thing about this pistol light is that you can snap it on and tighten it with just one hand. This keeps your hands away from the gun’s muzzle when you are adding or removing it. This function keeps you safe speeds up and simplifies the process.

Lastly, the Streamlight 69400 TLR-7 Sub is made to connect securely to certain subcompact handguns, like your SIG P320. This will give you a perfect fit and great stability.

SIG P320 Slide Upgrade

A new slide for a SIG P320 can be better than the stock slide in many ways, such as being more accurate, more durable, easier to use, and looking better. A new slide can be made of a stronger material, be lighter, have a different sight radius, and have a different shape. If you want to improve the performance of your SIG P320, you should think about getting a new slide.

1. Killer Innovations Velocity Sig P320 Compact Mod1 Stripped Slide

Killer Innovations Velocity Sig P320 Compact Mod1 Stripped Slide

This slide has E.G.F. (Enhanced Grip Feature) cuts that give you a solid wall to push against when you’re racking it. This feature is important because it gives you a great grip on the gun no matter how you like to hold it. This can be very helpful when you need to move quickly and effectively.

It works with several SIG P320 models, including the P320C, P320 AXG Scorpion, P320M18, P320 Nitron Compact, P320 RXP Compact, full-size models that use the X-Grip Module, and the M17 with a 3.9″ barrel. This means that you can use this slide to improve your SIG P320, no matter what type you have.

It is made of 17-4 stainless steel, which is a strong and stable material. The stripped slide with the cover plate and screws weigh 8.2 oz, making it a lightweight choice for your SIG P320.

SIG P320 Magazine Upgrades

Upgrading the magazine of a SIG P320 can make the gun work better in many ways, such as by increasing its capacity, making it more reliable, making it easier to use, and giving it a more unique look.

A new magazine can hold more rounds, be made of harder material, have a different grip, and be made to order. It is an easy and inexpensive update that can make a big difference in how a hunter shoots.

1. SIG SAUER P320 9 mm 10 Round MAG

SIG SAUER Magazine P320 9mm 10 Round MAG

I strongly suggest getting the SIG SAUER Magazine P250/P320 9mm 10 Round MAG-MOD-F-9-10. These mags work with full-size models of the P250 and P320 and are chambered for 9mm.

One of the best things about switching to these magazines is that they will work just like they did when they were made. Since these are real SIG SAUER magazines, you can be sure that they meet the best quality and reliability standards. You’ll also be able to relax knowing that they will work perfectly with your gun.

Another good thing about these magazines is how much they can hold. They can hold 10 shots, which is more than most other magazines on the market can hold. This means you’ll be able to shoot more and spend less time reloading.

1. Sig Sauer Magazine Well Sig P320 X-Series

Sig Sauer Sig P320 X-Series Black Magazine

I think the Sig Sauer Magazine is a good choice.

One of the best things about this update is that it can help you reload much faster. By guiding the magazine into the magazine well, the Magazine Well makes it easier and faster to replace your gun. This can help a lot in cases where every second counts, like when there is a lot of stress.

Another good thing about the Magazine Well is that it can help you hold your gun more securely. This can help you shoot more accurately and with more control. Also, the way the Magazine Well is made can make it less likely that your hand will slip off the gun during recoil.

SIG P320 Accessories

Lastly, let’s talk about the extras that can be bought for the Sig P320 gun. If you ask me, there are quite a few. But not all of them are important. I think a good belt and a PWD are the two most important ones.

The holster is great for concealed carry with lights, and the PWD upgrade will make it possible to put a P320 arm brace, which is a big plus. I think it will be good to keep both choices if you want to do both hunting and competition.

1. Sig Sauer P320 Compact OWB Holster

Sig Sauer P320 Compact OWB Holster

This is something you should definitely think about getting.

First of all, the OWB (Outside the Waistband) holster is great for concealed carry, which makes it a great choice for shooting when you need to keep your gun hidden while moving through the woods. Also, the case is made to fit your gun specifically, so it will stay in place and keep the gun from moving or sliding around.

The Bravo Concealment holster is also made of sturdy and comfortable high-quality materials. This is especially important if you’re going shooting for a long time and need a holster that won’t hurt or irritate you.

2. Fire Control Unit Fire Control Module for P320


Finally, I’d like to suggest a Fire Control Module that may be used to modify the Sig P320’s firing system. The Fire Control Unit is adaptable and may be used with full-size, carry, or compact P320 or P250 slides chambered in 9mm,.40, or.357 SIG.

The Fire Control Unit also features a mil-spec 1913 Picatinny optic rail, so you may attach various optics to it to increase your accuracy in the field. It will help you to improve your shooting steadiness and control by attaching a buttstock, sling, or arm brace to the rifle’s rear vertical 1913 Picatinny rail.

You can swiftly and simply load your rifle with either hand thanks to the Fire Control Unit’s ambidextrous slide-lock charging handle assembly. You may also attach a sling for more comfort and mobility with the two QD Sling mounts on the back.

The Fire Control Unit also features three M-Lok accessory slots on its fore-end, allowing you to further personalize your firearm. Additionally enhancing grip and stability while shooting is the dual unique hand stops.

The Fire Control Unit is built to last and can withstand intense use thanks to its glass-filled nylon and stainless steel components. The shortest length it can function at is 16 inches, and it only weighs 24.1 ounces with the arm brace attached.


You can increase the effectiveness and fun of shooting your firearm by installing upgrades. Depending on your specific situation and personal preferences, you can choose from a variety of available improvements.

The sights and barrel of your gun can be upgraded to increase its accuracy. The grip and the trigger can be modified to improve the gun’s handling. In addition, the frame and the slide can be strengthened to increase the firearm’s longevity.

There is an upgrade available that can boost your gun’s performance regardless of your requirements. And if you put in the time and effort, you can locate the ideal upgrade for your specific requirements.

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