Gun Cleaning How to Videos

Sig Sauer P320 X5 Legion

Sig Sauer P320 X5 Legion

A step by step video on how to clean and disassemble your Sig Sauer P320 X5 Legion handgun. This is a part of our ongoing Gun Cleaning How To series.


Recommended Gun Cleaning Supplies for Your Gun Cleaning Kit



Step One

To start and as with any firearm you’re cleaning, make sure that it is unloaded before breaking it apart.

How to disassemble and clean a Sig Sauer P320 X5 Legion


Step Two

Spin the takedown lever clockwise until it is perpendicular to the slide.

How to disassemble Sig Sauer P320 takedown lever


Step Three

While holding pressure on the slide pull the slide catch lever down.

How to remove slide from a Sig Sauer P320 X5

Now you can pull the slide off the grip module.

Removing slide from a Sig Sauer P320 X5 Legion


Step Four

Push the recoil spring guide forward and then remove it.

How to remove recoil guide rod and spring from Sig Sauer P320 X5 Legion pistol

After that is out, remove the spring from the recoil spring guide. Take notice that the flat part of the spring butts up against the recoil spring guide. Remember that for reassembly. 

How to remove spring from recoil spring guide Sig Sauer P320 X5 Legion


Step Five

Now you can grab the barrel by the lug and pull it out. Place this to the side as well. 

How to remove barrel from Sig Sauer P320 X5 Legion hadgun


Step Six

We’ll remove the firearm control assembly next by removing the takedown lever. 

How to remove takedown assembly lever Sig Sauer P320 X5 Legion


Step Seven

After that is out, pull up on the slide catch lever and push on the back of the firearm control assembly.

How to remove firearm control assembly Sig Sauer P320 X5 Legion pistol

Pull up on the receiver rails to pop it out.

How to remove firearm control assembly Sig Sauer P320 X5 Legion handgun


Step Eight

You're not going to clean your gun without some gun cleaning products so let's pull them out now. 


A gun parts tray is handy to put all the small parts in. This will help keep them organized all the while allowing them to soak in CLP.

CLP solvent for gun cleaning lubricating

Coat all the parts and make sure to get plenty in the bore. Make sure to hit the slide thoroughly as well as the grip module.


Step Nine

After that grab a 9mm bore cleaning kit to scrub the bore. This is a fast and easy way to clean your gun’s bore. You could also use this with gun fully assembled for a quick field clean, but we'll show you a more thorough way of doing it here.

9mm bore snake gun cleaning kit

Feed the brass weight down through the chamber end of the bore and pull the unit through.


The bore cleaning kit should feel tight. ensuring a solid clean.


Step Ten

Now you're going to want to use a gun cleaning brush to scrub all the parts.


Take your time here and make sure to work on all the small parts of the firearm cleaning assembly, the outside of the barrel, as well as everything else work on the inside of the slide.

Gun cleaning nylon brush for gun cleaning kit

Be sure to scrub every nook to break all the carbon loose. Pay attention to the breech face and the frame rail as well.


Step Eleven

Take some gun cleaning swabs and get to work on cleaning out the carbon and grit from all those hard to reach areas.

gun cleaning swabs


Step Twelve

Use a rugged gun cleaning cloth to wipe down everything you can get too.

gun cleaning cloth


Step Thirteen

Now it's time to hit all the moving parts with a light spray of CLP to lubricate and protect your firearm.

How to use CLP to clean and lubricate gun


Step Fourteen (optional)

If you're putting a lot of rounds through your P320, it might not be a bad idea to use some high quality grease as well.

Gun grease and lubricant

This includes the lug of the barrel and the rails. 


Use your firearm cleaning swabs to help disperse the grease.


Step Fifteen

You can now place the barrel back into the slide.

How to replace barrel in Sig Sauer P320 X5 Legion pistol


Step Sixteen

Slide the recoil spring onto the recoil spring guide making sure that the flat end goes on first.

How to replace recoil spring guide and spring in Sig Sauer P320 X5 Legion pistol

Now for the fun part. Push the spring in and press the recoil spring guide so the butt end catches onto the barrel lug.


There's a lot of tension on the spring so take your time and be careful getting it in there.


Step Seventeen

Now we're going to reinstall the firearm control assembly.


Slide the rear of the firearm control assembly into the grip module. Make sure it is pressed all the way back towards the rear of the firearm.

How to replace firearm control assembly in Sig Sauer P320 X5 Legion pistol

Depress the trigger to allow the front of the assembly to be pushed back in place.


You'll know it’s aligned correctly when the slide catch lever falls into place.

How to reassemble Sig Sauer P320 X5 Legion pistol


Step Eighteen

Grab the takedown lever and press it in in the six o'clock position.

How to reassemble takedown lever in Sig Sauer P320 X5 Legion pistol

You may need to twist it back and forth a little to get it into place.


Once partly in, it helps to spin it to the nine o'clock position in order to seat it properly.

How to reassemble Sig Sauer P320 X5 Legion pistol

Now by turning it counterclockwise to the three o'clock position press it home.

How to reassemble Sig Sauer P320 X5 Legion pistol

Back to the six o’clock position.

How to reassemble Sig Sauer P320 X5 Legion handgun

Step Nineteen

In order to allow reassembly of the slide, take the slide and align the slide rail slots up with the receiver rails.

How to replace slide in Sig Sauer P320 X5 Legion pistol


Step Twenty

Pull the slide all the way back until you can seat the slide catch lever to keep the slide into the open position.

How to disassemble and clean a Sig Sauer P320 X5 Legion pistol


Step Twentyone

Now spin the takedown lever counterclockwise to the three o’clock position. 

How to clean a Sig Sauer P320 X5 Legion handgun

That's it, you now have a fully cleaned and reassembled Sig Sauer P320.


Some Background on the Sig Sauer P320 X5 Legion

The Sig Sauer P320 X5 Legion is part of the renowned P320 family of firearms. The X5 is chambered in 9mm and utilizes a striker-fired mechanism instead of a double action hammer system. The pistol increased its weight by adding a TXG tungsten-infusion to its grip module. By doing this Sig Sauer was able to reduce its muzzle flip in the firearm by up to 50%.

It comes in the signature Legion Gray finish, making it instantly recognizable for the high quality that is synonymous with the Legion series. Also recently upgraded was the recoil system to a a solid steel guide rod and a 14lb 1911 style spring. It also comes with an extra 12lb spring.

As with all the P320s it was designed to be ambidextrous in handling. Their is a catch lever on both sides of the slide as well as sporating a reversible magazine release.

The standard magazine come in 17-round.

We're a big fan of this firearm because it can be field stripped without any tools. This means easy takedown and cleaning of the firearm.

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