How to Field Strip & Clean a Glock 17 9mm or Glock 19 9mm Pistol

Glock 4 Main Parts
Glock 4 Main Parts

Glock 17 or Glock 19 Cleaning Instructions. Glock Field Strip (disassembly), Lubrication and Reassembly

I am going to show you step-by-step how to disassemble and clean a Glock 17, Glock 19 9mm pistol. In fact, all Glock pistols come apart the same way, so these instructions will work on any Glock!

From the field stripping to complete reassembly, these Glock cleaning instructions will show you how to quickly and confidently perform this task in 15-20 minutes.

If you have never tried to take down (field strip) your Glock 17 or Glock 19, you will soon see how easy it is to accomplish without even using any tools. The design is excellent so anyone can easily maintain their firearm.

Related Glock Articles:

How to Install a Glock Backstrap

Field Stripping the Glock 17 or Glock 19.

This is pretty straight forward as all Glock guns are very well-designed to come apart and clean easily. After doing this once, you will be able to do it even quicker the next time without instructions!

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All Glock pistols disassemble the same way

These Glock disassembly instructions will work to field strip the Glock 17, G19, G26, G34, G43, G45 and G48 (all 9mm models).

You can also field strip the Glock 22, G23, G24, G27 and G35 (All .40 caliber models).

As well, you can field strip Glock 21, G30, G36 and G41 (.45 caliber models).

There are many different models of the Glock pistol. The differences are in the physical size, caliber, features, etc.

Despite these differences, all Glock pistols disassemble (field strip) the same way as shown in this article.

Different gun manufacturers have different ways to field strip their handguns, especially when it comes to removing the slide, and you should always find a tutorial before attempting to remove the slide from an unfamiliar gun for the first time.

Note of Caution When Pressing the Trigger

All Glocks do require the trigger to be pressed during disassembly, which has resulted in negligent or unintentional discharges in the past. If you properly unload your gun and double check it before attempting to disassemble and/or clean it, you will not have any issues.

However, pressing the trigger at any time other than when you are on the range, sighted in, is a violation of the second rule of firearm safety. The rule is, “Never put your finger on the trigger until the gun is sighted in on a target and you are ready to shoot.”

If you have never tried to take down (field strip) a semiautomatic gun, rest easy as it is not hard or complicated. At least not the Glock 17 or Glock 19 or any other Glock model.

Glock 17 Cleaning Supplies

Here are the supplies you will need to complete the disassembly and cleaning of most semi-automatic pistols. There are lots of different cleaning products, so I will list the ones I have used for years of trouble free results.

These are affiliate links so kydexowbholsters.com will receive a small commission at no cost to you if you shop through them. It is greatly appreciated!

See this article on setting up a DIY Gun Cleaning Station.

Original Gun Oil

Original Gun Oil CLP
CLP Gun Oil

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Safe for Synthetic & Polymer Guns: GLOCK, M&P, XD.

I use Original Gun Oil on all my firearms. This product is a C.L.P. (Cleaner, Lube & Protectant all in one) that is Non-Toxic, Non-Staining and Non-Scented, making it safe to use in the house! Veteran-Owned business.

Instructions to Field Strip (disassemble) the Glock 17 9mm pistol

I am going to list the steps, then show detailed pictures of each step so you can follow along.

Step 1. Unload the gun

This is the most important step. Eject any magazine that is in the gun by pressing the magazine release button, and then remove the round in the chamber. Be sure to do it in that order! Magazine first, then empty the chamber! Remove any and all ammo from the area.

Unload the gun by first removing the magazine
Unload the gun by first removing the magazine
Verify there is no round in the chamber
Verify there is no round in the chamber

Step 2. Verify the gun is completely unloaded

This step is critical because we need to press the trigger in order to field strip a Glock pistol!!

Lock the slide to the rear
Lock the slide to the rear
Verify there is no magazine in the gun
Verify there is no magazine in the gun
Verify there is no round in the chamber
Verify there is no round in the chamber

Step 3. Remove the slide, the barrel, the recoil spring/guide rod assembly

Point the muzzle in a safe direction and press the trigger
Point the muzzle in a safe direction and press the trigger
Grip the gun with right hand as pictured
Grip the gun with right hand as pictured
Move the slide slightly to the rear about a quarter of an inch
Move the slide slightly to the rear about a quarter of an inch
Locate the Take-Down levers on BOTH sides of the gun
Locate the Take-Down levers on BOTH sides of the gun
While pulling the Take-down levers down on both sides, move the slide forward and off the front of the frame
While pulling the Take-Down levers down on both sides, start moving the slide forward on the frame
Continue moving the slide forward until it comes completely off the frame
Continue moving the slide forward until it comes completely off the frame
Turn the slide upside down and press on the recoil spring as shown
Turn the slide upside down and press on the recoil spring as shown
Lift and remove the recoil spring assembly
Lift and remove the recoil spring assembly
Lift and remove the barrel
Lift and remove the barrel
Glock 17 Field Stripped for cleaning
Glock 17 Field Stripped for cleaning

That’s it for the field strip/disassembly procedure of the Glock 17 or Glock 19 9mm. This is as far as you need to go to give the gun a good cleaning, or to replace the recoil spring. Let’s move on to the Glock cleaning instructions.

How to clean a Glock 9mm

I will start with the barrel. It does not matter which part you do first. Basically we are going to apply some gun cleaner to each part and let it sit for 5 minutes or so. Then we will clean it off with a cotton cloth. In this case I am using Original Gun Oil (my preferred CLP. This stuff is odor free, non-toxic and non-staining).

Here are the steps:

Step 1. Clean the Glock barrel and recoil spring assembly

Apply some Original Gun Oil or cleaner to the barrel
Apply some Original Gun Oil or cleaner to the barrel
Spread it to all surfaces
Spread it to all surfaces

I am not using gloves because Original Gun Oil is non-toxic. If you are using any other solvent, please use rubber or nitrile gloves!

Apply a few drops into the bore of the barrel and allow it to coat the inside
Apply a few drops into the bore of the barrel and allow it to coat the inside
Wait 5 minutes and wipe outside of the barrel clean with a cotton cloth
Wait 5 minutes and wipe outside of the barrel clean with a cotton cloth
Run a Boresnake through the barrel several times
Run a Boresnake through the barrel several times

The Boresnake has copper brushes integrated into the weave so it will do a good job cleaning any lead or carbon deposits from the inside of the barrel.

Make sure the feed ramp is clean and smooth
Make sure the feed ramp is clean and smooth
Look through the barrel and verify that it is clean
Look through the barrel and verify that it is clean
Wipe down the recoil assembly with a cotton cloth. Use some Original Gun Oil if necessary
Wipe down the recoil assembly with a cotton cloth. Use some Original Gun Oil if necessary

Step 2. Clean the Glock Frame

We will now move on to clean the frame of the gun. Apply some cleaner to all the metal parts inside the frame. Use a cloth or brush to spread it around so all the dirty areas are coated with the cleaner.

Apply some Original Gun Oil to all metal parts of the frame
Apply a small amount of Original Gun Oil to all metal parts of the frame
Use a gun brush to spread the cleaner to all surfaces
Use a gun brush to spread the cleaner to all surfaces
Use the brush to scrub any particularly dirty areas
Use the brush to scrub any particularly dirty areas
Wait 5 minutes or longer to let the cleaner loosen the dirt, then wipe off with a cotton cloth
Wait 5 minutes or longer to let the cleaner loosen the dirt, then wipe off with a cotton cloth
Use the gun brush to force the cloth into the tight spots
Use the gun brush to force the cloth into the tight spots
Wipe until the frame is pretty clean
Wipe until all parts of the frame are pretty clean

Step 3. Clean the Glock Slide

The slide is where most of the action happens so we want to spend some time cleaning this part.

Apply Original Gun Oil to all surfaces of the underside of the slide
Apply several drops of Original Gun Oil to all surfaces of the underside of the slide
Use a gun brush to spread the cleaner to all surfaces, including the rail cut outs along both sides
Use a gun brush to spread the cleaner to all surfaces, including the rail cut outs along both sides
Be sure to get some cleaner on the Breech Face
Be sure to get some cleaner on the Breech Face
Here is what my slide looks like after I apply the Original Gun Oil
Here is what my slide looks like after I apply the Original Gun Oil
After letting the gun oil work for at lease 5 minutes, wipe it clean using a cotton cloth
After letting the gun oil work for at lease 5 minutes, wipe it clean using a cotton cloth
Use the gun brush to force the cloth into the slide notch and other tight places
Use the gun brush to force the cloth into the slide notch and other tight places

Since we are using a CLP product (Cleaner, Lubricant and Protectant) is is not necessary to remove 100% of the oil from every little nook and cranny. This is because any residue left over will also lubricate and protect the gun from rust and corrosion.

Be sure to get the Breech Face clean
Be sure to get the Breech Face clean
Here is the slide after cleaning
Here is the slide after cleaning

Step 4. Lubricate the Glock 17 or Glock 19 9mm Pistol

Once all the parts are clean, we need to lubricate the moving parts as shown with Original Gun Oil or other quality gun lubricant. The steps below follow the Glock user manual lubrication procedures.

Apply a drop or two of Original Gun Oil to a cotton cloth
Apply a drop or two of Original Gun Oil to a cotton cloth
Wipe down all surfaces on the outside of the barrel with the oil, leaving a light film
Wipe down all surfaces on the outside of the barrel with the oil, leaving a light film
Wipe down the inside top of the slide in front of the Ejection Port
Wipe down the inside top of the slide in front of the Ejection Port
Wipe down the opening that the barrel slides through in the front of the slide
Wipe down the opening that the barrel slides through in the front of the slide
Apply ONE drop of Oil to the slide cut on each side
Apply ONE drop of Oil to the slide cut on each side
Use a gun brush to spread the oil the length of the slide cut on both sides
Use a gun brush to spread the oil the length of the slide cut on both sides
Wipe down the outside of the slide as well
Wipe down the outside of the slide as well
Apply ONE drop of oil in the frame where the trigger bar touches the connector as shown
Apply ONE drop of oil in the frame where the trigger bar touches the connector as shown

User Level Inspection

At this point you should perform a User Level inspection of the gun before you reassemble. I will have an article for that in the next week or so. In the meantime there is a video below that contains these checks.

Reassembly of the Glock 17, Glock 19 9mm Pistol

This part is very simple with the Glock pistols. Probably the easies of all guns I have reassembled.

Place the barrel into the slide
Place the barrel into the slide
It should look like this
It should look like this
Place the recoil spring assembly into the slide with the larger plastic end facing the front
Place the recoil spring assembly into the slide with the larger plastic end facing the front
Seat the front end, press the other end to compress the spring slightly and place it into the notch in the barrel
Seat the front end, press the other end to compress the spring slightly and place it into the notch in the barrel
The recoil spring assembly should look like this
The recoil spring assembly should look like this
Flip the slide over and line it up with the rails on the frame as shown
Flip the slide over and line it up with the rails on the frame as shown
Move the slide straight back slowly being careful not to let the Extractor scratch the rear of the slide
Move the slide straight back slowly being careful not to let the Extractor scratch the rear of the slide
Move the slide all the way to the rear and it will click into place
Move the slide all the way to the rear and it will click into place
Allow the slide to come forward to the home position and you are done!
Allow the slide to come forward to the home position and you are done!

Final Steps to complete the reassembly of the Glock 17, Glock 19 or any other Glock pistol.

Work the slide back and forth several times to be sure it operates properly, and to allow the lube to spread into all the areas that move.

Perform the Glock User Level inspection before you fire the gun. These checks are integrated into the video below.

Video: How to Field Strip, Clean, Lubricate and Reassemble a Glock 17 or Glock 19

Video: (Short Version) How to Clean a Glock 17:

Ok, you are all done! That was a lot of steps but they are easy and you will fly through next time!

Lastly, you should test the functionality of the gun by taking some dummy rounds and loading the gun with them. Now make sure a round is ejected every time to rack the slide to the rear.

The gun is now fully assembled and ready for another day at the range!

Thanks for letting me walk you through the field strip, cleaning, lubrication and reassembly of your Glock 17 or Glock 19 (or any other Glock) pistol. Keeping your Glock clean and ready for use is an important part of gun ownership.

See article: How to Disassemble & Clean an AR-15 rifle

If you have any suggestions, recommendations or other comments, please leave it in the comment section below and I will usually reply within 24 hours.

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