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If you’re a proud owner of a FN Herstal FNX, you know it’s a reliable firearm that’s built to last. But like any high-quality piece of machinery, it needs regular maintenance to keep it in top shape. That’s where I come in.

In this article, I’ll guide you through the process of cleaning your FN Herstal FNX. We’ll cover everything from the basic disassembly to the finer points of cleaning each component. With my step-by-step instructions, you’ll have your firearm clean, safe, and ready for action in no time.

Disassembling Your FN Herstal FNX

Taking apart the FN Herstal FNX isn’t as daunting as it seems. With a keen understanding and a careful approach, you’ll find it’s a straightforward process.

Safety First
Before starting, ensure that your firearm isn’t loaded. Make it a point to triple check the chamber and magazine – we can’t emphasize enough how critical this step is.

Step by Step Guide
let’s dive into disassembly. Here are the steps you’ll want to follow:

  1. Remove the magazine. Keep it aside – we’ll be giving it a thorough clean later on.
  2. Lock the slide to the rear. To do so, push up on the slide catch as you pull back on the slide.
  3. Once the slide is locked to the rear, turn the disassembly lever located on the right-hand side of the frame 90 degrees clockwise.
  4. Now, you’re ready to remove the slide. Hold the FN Herstal FNX with one hand, release the slide catch with your other hand, and slide it off the frame.

After the slide is off, barrel and recoil spring assembly removal is pretty simple. Just be sure not to force parts apart – if it’s not coming out easily, there’s probably a reason. Your FN Herstal FNX is engineered to fit together a certain way.

Handling Small Parts
Do take note when dealing with small parts. Small pins, springs, or levers can easily get lost if not handled properly. Have a dedicated space for keeping these items during disassembly to prevent any mishaps.

Now that we’ve finished disassembling your FN Herstal FNX, I’ll guide you through cleaning each part in the next section. But remember, periodic maintenance is the key to optimal performance of your firearm. Regular cleaning not only prolongs the life of your FN Herstal FNX but also ensures its ready-to-fire status.

Cleaning the Barrel and Slide

Alright, now that we’ve successfully disassembled the FN Herstal FNX, it’s time to get down to the cleaning business. Maintenance is critical, and this includes taking good care of the barrel and slide.

To start, you’ll need a good quality gun cleaning kit. These usually have everything you’ll need: cleaning rods, a barrel brush, cleaning patches, and cleaning solvent. Remember, guys, using the right tools makes any job easier!

When cleaning the barrel, I like to apply a generous amount of cleaning solvent on the barrel brush and run it through the barrel several times. Don’t be stingy with it. It’s the solvent’s job to dissolve those stubborn deposits of powder, lead, or copper fouling. Once you’ve scrubbed enough, wipe your barrel with a clean dry cloth or a cleaning patch to remove the dissolved grime.

For the slide, you’ll notice that it typically gets less dirty than the barrel, but it still needs attention. With your cleaning cloth and some gun cleaner, scrub all the surfaces of the slide, paying extra attention to the slide rails. These areas tend to accumulate filth over time, and believe me, you don’t want grime to impede the movement of your firearm during shooting – it’s not a pretty sight.

So, before we move on, let’s jot down the main steps we covered:

  • Use a generous amount of cleaning solvent on your barrel brush and scrub the inside of your barrel.
  • Wipe down your barrel with a clean, dry cloth or use a cleaning patch to remove any dirt and grime.
  • With your cleaning cloth and gun cleaner, scrub the slide paying extra attention to the slide rails.

Remember, the goal here is to ensure each part of our FN Herstal FNX is as clean as it can be. After all, your firearm’s performance hinges on its cleanliness. Regular cleaning also elongates the life of your weapon, making it not only safer but a more reliable tool.

Removing and Cleaning the Recoil Spring and Guide Rod

To ensure your FN Herstal FNX is running smoothly, it’s essential to remove and clean the recoil spring and guide rod frequently. Here’s a step-by-step guide.

First, turn the handgun upside down. The guide rod and recoil spring assembly will be visible from the back end of the slide. Apply a small amount of pressure to the guide rod with your thumb while simultaneously lifting it to remove it from the slide. Always be very careful when handling the recoil spring; it’s under tension and can potentially cause injury if mishandled.

A good quality gun cleaning solvent is vital for this part of the process. Apply a bit of solvent to a cleaning patch and run it along the length of the guide rod. This will remove any dirt, residue, or grime that has built up over time. Make sure to clean the recoil spring as well by running a solvent-soaked patch through its coils.

Next, it’s time to oil the spring and the guide rod. Apply a few drops of a high-quality gun oil along the rod and onto the spring. Maintaining proper lubrication is crucial as it prevents friction and enhances the overall functioning of your firearm. However, do not over oil as it can attract dirt and lead to malfunctions down the line.

Finally, reassemble the component by guiding the rod and spring back into place within the slide. Use pressure from your thumb to pop it back into position. It should sit flush with the end of the slide.

Remember: nothing beats regular maintenance when aiming for long gun life. Stay safe, stay cautious, and keep your firearm clean. It’ll thank you for it with excellent service and extended longevity.

Cleaning the Frame and Grip

In the process of maintaining your FN Herstal FNX, the cleaning of the frame and grip is crucial. Poor cleaning strategies can affect your firearm’s long-term performance and potentially lead to untimely malfunctions.

Firstly, ensure you’re in a well-ventilated area. This decreases the risk of inhaling harmful chemicals. Put on a pair of safety gloves before you start. This prevents gun grease, solvents, and oils from getting onto your skin – you don’t want that.

To clean the frame, use a nylon brush. Dip it lightly into the cleaning solvent and brush away any residue within the fire control cavity. Focus on the areas around the disassembly lever and the slide rails. These spots tend to accumulate dust and gunk over time.

Don’t forget, you’re not giving it a bath! It’s not about how much solvent you use, but how effectively you use it. Overuse might seep into the places it’s not supposed to – like small springs. That can cause unwanted issues down the line.

Now for the grip – or the handle as some might call it. The grip is the point of contact between you and your firearm. Your palms sweat, dirt sticks, and residues build up over time. All this calls for a timely cleanup. Use a lightly soaked cleaning cloth to wipe off the outer surfaces of the grip. Make sure to detail clean the surface and reach into grooves and crevices.

That’s part one done. But don’t stop there! Proper lubrication is the key to smooth firearm operation.

Use a thin layer of high-quality gun oil. Apply it to the slide rails, and the barrel exterior. Just a few drops will do. Use a clean, lint-free cloth to spread it. This not only provides lubrication but also protects the metal surfaces from moisture and prevents rust.

Adding too much oil might cause the firearm to collect more dirt. So, a thin layer will do – remember, less is more.

Keeping your FN Herstal FNX clean isn’t just about preserving efficiency. It’s about extending its lifespan. It’s about making sure every time you pull the trigger, you get reliability and performance. Not to mention, it certainly adds a sparkle to your pristine firearm collection.

Lubricating your FN Herstal FNX

Once the frame and grip of the FN Herstal FNX are clean, the next step I’ll discuss is lubricating your firearm. Proper lubrication is critical for the smooth operation of your firearm, protecting it from moisture and rust and enhancing its performance over time. I can’t emphasize this point enough – the last thing a firearm owner wants is a malperforming weapon due of inadequate lubrication.

On to the lubrication process itself – it’s pretty straightforward. High-quality gun oil is recommended for this process.

Firstly, a thin layer of lubricant should be applied to the slide rails. These are located on the frame and can be clearly seen after the slide has been removed during the disassembly process.

Here’s how to do it:

  • Take your bottle of gun oil.
  • Get a clean, lint-free cloth or a precision applicator.
  • Apply a bead of oil along the full length of each slide rail.
  • Spread the oil across the surface with your cloth or applicator.

Simplicity and effectiveness, that’s the plan!

The second part of lubrication involves the barrel exterior. It’s a relatively easy task.

Here’s how:

  • Take your gun oil and cloth or applicator.
  • Place a few drops of oil on the cloth or directly onto the barrel exterior.
  • Spread the oil evenly across the outer surface of the barrel until it’s completely covered

Remember, our goal here isn’t to drown the firearm in oil. A thin layer distributed evenly over the surface will do the trick. We’re after smooth operation not a mess!


So there you have it. I’ve walked you through the whole process, from disassembly to lubrication of your FN Herstal FNX. Remember, it’s all about safety first, then simplicity and effectiveness. You now understand why it’s so crucial not to drown your firearm in oil, but rather to apply a thin, even layer. By doing this, you’re not only ensuring smooth operation but also protecting your firearm against moisture and rust. It’s these small yet significant steps that can greatly enhance the performance of your FN Herstal FNX over time. So don’t neglect them. Regular cleaning, maintenance, and lubrication are the keys to preserving your firearm’s efficiency and extending its lifespan. Happy cleaning!

Frequently Asked Questions

Q1: Why is it important to disassemble and clean a firearm?

A1: Disassembling and cleaning a firearm is important to ensure its proper functioning, reliability, and longevity. It removes dirt, debris, and residue that can affect performance, prevents corrosion and rust, and helps identify any potential issues that may need attention.

Q2: How do I disassemble the FN Herstal FNX firearm?

A2: To disassemble the FN Herstal FNX firearm, first, ensure it is unloaded. Remove the magazine, lock the slide to the rear, and turn the disassembly lever to remove the slide. Be cautious and follow the manufacturer’s instructions carefully to avoid accidents.

Q3: Why is lubricating a firearm necessary?

A3: Lubricating a firearm is essential for smooth operation, preventing friction and wear on moving parts, protecting against moisture and rust, and optimizing performance. Proper lubrication improves reliability, reduces the chances of malfunctions, and extends the lifespan of the firearm.

Q4: How should I lubricate the FN Herstal FNX firearm?

A4: When lubricating the FN Herstal FNX firearm, apply a thin layer of high-quality gun oil to the slide rails and the exterior of the barrel. Ensure even distribution of the oil for optimal results. Avoid over-lubricating, as this can attract dirt and affect performance. Be cautious not to drown the firearm in oil.

Q5: Why is regular cleaning, maintenance, and lubrication essential for the FN Herstal FNX firearm?

A5: Regular cleaning, maintenance, and lubrication are crucial for preserving the efficiency and extending the lifespan of the FN Herstal FNX firearm. By removing dirt, debris, and residue, and ensuring proper lubrication, you can maintain its reliability, prevent malfunctions, and protect it against corrosion and rust.