Sig P320 x5 Legion Problems And Their Solutions

The SIG Sauer P320 X5 Legion is a widely recognized and well-regarded handgun among firearms enthusiasts. Despite its reputation for reliability, some users have experienced problems with their P320 X5 Legion.

Some of the most common problems with SIg P320 X5 Legion include the battery blowing out, magazine issues, sight issues, and some time ergonomics problems arise. 

These issues range from minor malfunctions to more serious problems that can affect the performance of the firearm.

In this article, we will take a closer look at some of the most common problems reported by P320 X5 Legion owners, as well as potential solutions to those issues.

Whether you’re a seasoned shooter or a new owner of this popular handgun, understanding these problems and how to address them is crucial for maintaining the longevity and performance of your SIG Sauer P320 X5 Legion.

Common SIG P320 X5 Legion Problems and Solutions

Here are some common problems reported with the SIG P320 X5 Legion:

1. Battery Blowing Out:

The battery powering the electronic components can become dislodged or expelled during firing, potentially damaging or losing functionality.

Keeping your battery well-maintained is essential for ensuring safety and performance when using a firearm. To get the most out of your battery, start by inspecting the compartment it sits in – be sure that it is secure, that all contacts are clean, and that no debris is present.

Don’t forget to use a fresh and high-quality battery that meets the specifications listed in your owner’s manual.

Additionally, ensure that the connection between the battery and the device is tight and unburdened with corrosion. Consider investing in a protective accessory such as a battery cover to help keep the battery in the proper place while firing.

Malfunctioning trigger: Some users have reported issues with the trigger, including failure to reset, consistent misfires, and other performance issues.


Here are some steps you can follow to troubleshoot the malfunctioning trigger in your SIG P320 X5 Legion:

Clean the trigger components: Use a cleaning solvent to clean all parts of the trigger assembly, including the trigger bar, sear, and connector.

Check the trigger return spring: Ensure that the trigger return spring is properly installed and functioning correctly. If the spring is damaged or worn, it may need to be replaced.

Adjust the trigger: Some SIG P320 X5 Legion firearms may have an adjustable trigger that can be fine-tuned for a better shooting experience. Refer to the owner’s manual for instructions on adjusting the trigger.

Check for interference: Ensure there is no interference from other components, such as the grip or frame, that may prevent the trigger from functioning properly.

2. Trigger Pull Problem

This problem is caused by the firing pin block that is part of the pistol’s design, which can cause the trigger to be slow and sluggish to reset.

Fortunately, there are a few possible solutions to this problem.

The first is to replace the firing pin block with a new one. This can be easily done by most gunsmiths and can be done relatively inexpensively. This will replace the old, worn out part with a new, fresh one and will often eliminate the sluggishness of the trigger.

Another solution is to invest in a trigger job, a special service that will reduce the force needed to pull the trigger.

This will make the trigger reset faster and will generally make the trigger feel more responsive.

Finally, if you still have problems with the trigger pull, you may want to consider replacing it. There are aftermarket triggers available that will provide a much crisper and smoother trigger pull.

This is a more expensive option, but it may be best if you are struggling with the trigger pull issue.

2. Sight issues: 

Some users have reported difficulties with the red dot sight, including zeroing and maintaining proper alignment.


Here are some steps you can follow to troubleshoot sight issues in your SIG P320 X5 Legion:

Check the zero: Ensure the sight is properly zeroed for your shooting conditions and distance. Refer to the owner’s manual for instructions on how to zero the sight.

Check the battery:

Ensure that the battery powering the sight is properly installed and functioning correctly. If the battery is low or dead, replace it with a fresh battery.

Clean the sight: Use a cleaning solvent to clean the sight lens and housing. Dirt, debris, or fingerprints on the lens can affect the accuracy of the sight.

Check the mounting: Ensure that the sight is securely mounted and that there is no looseness or movement in the mount.

3. Magazine problems:

Some users have reported magazine issues, including failure to feed or eject properly.


Here are some steps you can follow to troubleshoot magazine problems in your SIG P320 X5 Legion:

Check the magazine spring: Ensure that the magazine spring is not damaged, worn, or compressed. A weak or damaged spring can cause feeding problems.

Check the follower: Ensure that the follower is installed and functioning correctly. If the follower is damaged or bent, it may need to be replaced.

Clean the magazine: Use a cleaning solvent to clean its interior and remove any dirt, debris, or buildup affecting its function.

Check the magazine lips: Ensure that the magazine lips are not damaged or bent, which can cause feeding problems.

Load the magazine correctly: Ensure that you are loading the magazine correctly and that the cartridges are aligned with the magazine lips.

Consult the owner’s manual: If you’re still experiencing magazine-related issues, consult the owner’s manual or seek the assistance of a qualified technician for further guidance.

4. Ergonomic issues:

Some users have reported discomfort with the grip or other elements of the firearm, leading to a reduced shooting experience.

Here are some steps you can follow to troubleshoot ergonomic issues in your SIG P320 X5 Legion:

Adjust the grip: Ensure the grip is properly adjusted to your hand size and shooting style. Some SIG P320 X5 Legion firearms may have an adjustable grip that can be fine-tuned for a better shooting experience.

Use grip tape or stippling: Applying grip tape or stippling to the grip can improve traction and help prevent slipping during shooting.

Check the trigger reach: Ensure that the trigger reach is comfortable and not causing discomfort or strain during shooting.

Use different backstraps: Some SIG P320 X5 Legion firearms may come with different backstraps that can be swapped to improve fit and comfort.

It’s important to note that not all SIG P320 X5 Legion firearms will experience these issues, and the specific problems you may encounter can vary depending on a range of factors, including your specific firearm and shooting conditions.

What Does The User Think About SIG P320 X5 Legion?

The SIG Sauer P320 X5 Legion is a full-sized, striker-fired pistol designed for competitive shooting and home defense. It is a variant of the popular P320, with a few upgrades that make it an attractive option for competitive shooters and home defenders alike.

The X5 Legion has been praised for its enhanced accuracy and reduced recoil, thanks to its improved trigger and enhanced grip. It features a 5-inch barrel and a unique tungsten-infused slide designed to reduce weight and improve slide manipulation.

Other features include an improved grip texture and an integral M1913 Picatinny rail for mounting accessories. Many users have praised the P320 X5 Legion’s reliability, accuracy, and ergonomics. Many have noted that the enhanced grip texture and trigger feel are great for accuracy and control.

The heavier slide and improved grip texture also help to reduce felt recoil and improve slide manipulation. The P320 X5 Legion is also becoming increasingly popular with home defenders thanks to its excellent ergonomics, improved accuracy, and enhanced grip texture. Its larger size makes it easier to manipulate, and its improved accuracy makes it a great choice for defence.


What Is The Average Life Expectancy Of A Sig P320 X5 Legion?

The average life expectancy of a SIG P320 X5 Legion is approximately 10,000 rounds. This number varies depending on how much use, maintenance, and care the firearm has received, but it is a good starting point for reference.

How good is the Sig P320 X5 Legion?

The Sig Sauer P320 X5 Legion is a highly rated pistol among enthusiasts and professionals. It is known for its accuracy, reliability, customization options, and excellent trigger.

Some consider it one of the best striker-fired pistols on the market.

However, like all firearms, the suitability of the P320 X5 Legion depends on individual needs and preferences, and it’s always a good idea to handle and shoot a firearm before purchasing it to ensure it meets your expectations.

What is the difference between the Sig P320 X5 and the Sig P320 X5 Legion?

The Sig P320 X5 and the Sig Sauer P320 X5 Legion are high-end variants of the Sig P320 pistol. The main differences between the two models are as follows:


The P320 X5 Legion includes several upgrades over the standard P320 X5, such as a Legion Gray coating, an improved trigger, and front cocking serrations.


The P320 X5 Legion is usually priced higher than the standard P320 X5 due to its additional features and enhancements.


The P320 X5 Legion is part of Sig Sauer’s Legion series and is only available through their Legion program, while the P320 X5 is more widely available.

Both models are popular among firearms enthusiasts and professionals and are known for their accuracy, reliability, and customization options. However, the suitability of either model depends on individual needs and preferences.

Is the Sig P320 X5 Legion optic ready?

Yes, the Sig Sauer P320 X5 Legion is optic-ready, meaning it has a slide cutout for mounting a reflex sight. It is designed to work with a wide range of red dot sights, including the Romeo1PRO, the Trijicon RMR, and the Leupold DeltaPoint Pro.

Which spring to use sig p320 x5 legion

The Sig Sauer P320 X5 Legion is compatible with the Sig Sauer P320 X-Series Trigger. This trigger is designed to improve the accuracy and performance of the P320 X-Series pistols. It features an extended trigger pad, an enhanced trigger pull, and an adjustable pre-travel stop. It is made from durable aluminum and is designed to provide a crisp, consistent trigger pull.

Does the sig p320 x5 legion have a safety?

Yes, the Sig Sauer P320 X5 Legion does have safety. The safety is in the trigger and can be disengaged with a thumb flick.

How to clean a sig p320 x5 legion

  1. Disassemble the firearm by locking the slide back and removing the slide stop, recoil spring, and barrel.
  2. Use a degreaser to clean the frame, slide, and all parts.
  3. Use a soft brush to scrub off any dirt or debris stuck on the frame and slide.
  4. Wipe off all parts with a clean, dry cloth to remove any residue and excess oil.
  5. Use a lubricant specifically designed for firearms on all moving parts. 6. Reassemble the firearm and test fire to ensure proper operation.


In conclusion, the SIG P320 X5 Legion is an excellent value for money, offering superb features and exceptional performance. It is an ideal choice for both competitive shooters and casual gun enthusiasts. Furthermore, its competitive price makes it one of the best bargains currently available both in the P320 and Legion lines.

With its attractive design and excellent performance, it is no surprise that the SIG P320 X5 Legion is a highly sought-after firearm. Therefore, I highly recommend investing in one of these pistols today.

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