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If you’re a proud owner of an FN P90, you know it’s crucial to keep it clean. A well-maintained firearm not only functions better but also lasts longer. In this guide, I’ll be sharing step-by-step instructions on how to clean your FN P90.

Cleaning a firearm might seem daunting if you’re new to it. But don’t worry, I’ll break down the process into simple, manageable steps. Whether you’re a novice or a seasoned gun owner, you’ll find this guide helpful.

Why Cleaning Your FN P90 is Important

Maintaining a clean FN P90 isn’t just about aesthetics. It directly impacts the functionality and longevity of your firearm. From my experience, a well-serviced firearm is a reliable firearm.

Keeping your P90 clean, lubricated, and properly serviced guards against malfunctions. We’re talking about issues like failure to feed, failure to eject, or failure to fire. Those aren’t just nuisances they can be dangerous especially in high-intensity situations. A clean firearm ensures better accuracy too. Any buildup of dirt or debris in your barrel could affect the trajectory of your bullet. So, cleaning equates to improved shot accuracy.

What happens if you neglect regular cleaning?

Your FN P90 becomes susceptible to wear and tear. The accumulation of dirt, grime, and carbon can damage delicate parts of your firearm. This could potentially decrease the lifespan of your P90. I’ve seen firearms working like they’re brand new despite being a few years old, all thanks to meticulous maintenance.

I cannot stress enough how essential it is to de-grime your firearm after you’ve used it particularly after heavy use. Whether it’s at a shooting range or out in the field removing that grime ensures the smooth operation of all moving parts inside the P90.

Consider your firearm as an investment. The more you care for it the longer it’s going to perform superbly for you. Cleaning your P90 isn’t simply a chore; it’s an integral part of firearm maintenance and ownership. It can impact your firearm’s performance and longevity but also your safety.

Learning to properly clean your P90 also gives you the opportunity to familiarize yourself with your firearm. It’s a hands-on experience where you get to know the ins and outs of your weapon. There’s a lot you can pick up by doing it yourself.

The next section will cover Step-by-Step guide on how to effectively clean your FN P90. So, hang on as you’ll be getting a thorough walkthrough on maintaining the cleanliness of your firearm. It’s all coming right up.

Safety Precautions

Before diving into the specifics of cleaning your FN P90, safety should never be neglected. Understanding and observing key safety measures ensures that you won’t inadvertently harm yourself or others.

Firstly, make certain that the firearm is unloaded. To do this, remove the magazine and clear the chamber. Pay attention during this step, even if you’re convinced your weapon is already unloaded. We don’t want any surprises here.

Secondly, stay focused. When you’re handling firearms, distraction is not an option. I’d say leave the phone elsewhere till we finish the cleaning. Keeping a clear head can eliminate potential accidents that could arise.

Third, always keep your P90 pointed in a safe direction, preferably towards the ground. This is a basic safety rule that you should adhere to even when the firearm is unloaded. Let’s respect the power firearms have and handle them with the care they deserve.

Do remember, ammunition and solvents don’t mix we – never have live ammo in the same room you’re cleaning in. Solvents can penetrate cartridge primers and ruin your ammunition or even worse, create a danger situation.

Finally, use personal protective equipment, such as safety glasses and gloves, to protect yourself from harsh cleaning solvents.

In the following sections of the article, I’ll walk you through the process of disassembling and cleaning your FN P90 in detail. But remember, if you’re unsure or uncomfortable at any stage during the cleanup, it’s always a good idea to consult a professional gunsmith or a more experienced user. Safety over speed, always.

Let’s move ahead, secure in the knowledge that we’re approaching this task with the right attention and emphasis on safety.

Required Cleaning Tools

Before embarking on the mission of cleaning your cherished FN P90, you’ll need to have the right tools. Sure, there are various commercially available gun cleaning kits on the market. However, understanding what each tool does can help you make an informed choice about what you need. The right kit can make a significant difference not just in the overall cleaning process, but also in maintaining the longevity of your P90.

First, you’ll need cleaning patches. These are vital for applying solvent to the bore and for the final cleanup after you’re finished. They come in a variety of materials such as cotton, synthetic blends, and even flannel. It’s essential they’re high-quality to avoid leaving residue inside your firearm.

Next, bore brushes are crucial. Their purpose is primarily to scrape away any stubborn residues left inside the barrel. Nylon, bronze, and stainless steel are the prevalent types, and each has its specific purpose. For example, stainless steel is the most abrasive — best to use it only when dealing with tough gunpowder residues.

A cleaning rod is another tool you’ll need for cleaning your P90. These rods can be brass, stainless steel, or even coated—to prevent scratching the inside of your firearm. Remember, the primary goal here is to achieve a thorough clean without causing any damage.

A gun cleaning solvent is a must-have. This chemical agent will help dissolve all the unwanted residues, oils, and dirt inside your beloved P90. There are plenty of brands available, each with their unique formulation. Pick one you trust and that is high-grade.

Finally, a good cleaning mat is advisable. It’ll provide you a clean, organized workspace. Plus, it’ll prevent any solvent from damaging your table or work area—which could lead to an unpleasant cleaning session instead.

Understanding and using the right cleaning tools not only aids in the effective cleaning of the P90 but also helps maintain its peak performance. Now that we’ve covered the tools let’s dive into the step-by-step cleaning process in the next section.

Disassembling the FN P90

Now that we’ve understood the importance of cleaning your FN P90 firearm and assembled all the necessary tools, the next step is to disassemble it. This allows us to reach places that are normally inaccessible and thoroughly clean all parts of the firearm. Bringing your P90 to its component parts can be a daunting task, but worry not, it’s simpler than it appears. Understanding the disassembling process is critical to maintaining your weapon’s peak performance.

To start with, ensure that the P90 is completely unloaded. Safety should be your primary concern when handling firearms. Remove the magazine, and check the chamber to confirm that there’s no ammunition present.

Once the P90 is safe, pull the receiver’s latches located on either side of the firearm to disengage it. Lightly tap the underside of the weapon, and the butt plate should slide off, granting you access to the bolt and bolt carrier. You’ll want to remove the bolt first, and then the bolt carrier.

Next, you’ll want to push the barrel catch forward and rotate the barrel 90 degrees counter-clockly. Gently pull it out, and with that, you’ve successfully disassembled the P90. Be careful not to lose or misplace any small parts as they are crucial to the functionality of your weapon.

It’s worth noting that disassembling your FN P90 down to its components is an educational process in itself. Not only does it provide you with an understanding of how this weapon functions, but also highlights why each part requires meticulous care.

Additionally, getting hands-on is a great opportunity to investigate any unusual wear or possible malfunctions that may escape the eye. No doubt, cleaning is a multi-faceted task, the importance of which goes beyond routine maintenance.

Hallmarks of effective FN P90 care include disassembly and inspection, regular cleaning, and correct reassembly. I’ll further delve into the various steps involved in the cleaning process in our next sections. So, as we proceed, we’ll know that our weapon’s reliability, longevity, and safety, are all tightly linked to its proper care.

Cleaning the Barrel

The cleaning of the barrel is the pivot around which most gun maintenance revolves. A clean, well-lubricated barrel ensures a smooth firing action, reduces wear and tear, and extends the life of your gun. On the other hand, a neglected barrel can harbor residues, impacting the gun’s performance and safety. Remember, a dirty barrel is a disaster waiting to happen.

Let’s walk through how to properly clean the P90’s barrel.

The first task in the cleaning process is removing any loose debris or grime. Invest in a good quality cleaning rod, brush, and cleaning patches. Preferably pick ones that are made from a material that won’t scratch the inside of the barrel, like brass or coated aluminum.

Start by attaching a cleaning patch to the cleaning rod and soak it in gun-cleaning solvent. Then, slide it into the barrel, ensuring it goes all the way through. Following this, add a brush to the cleaning rod and scrub the interior of the barrel to dislodge any stubborn residues.

patience is key in the cleaning process. Let the solvent sit for a while to break down residual gunpowder or other grime that might be lurking in the barrel. Then, run fresh cleaning patches through the barrel until they come out clean.

Next, it’s time to lubricate the barrel. Apply a light coating of gun oil on a new cleaning patch, run it through the barrel, coating the inside with a thin film of oil. Note, it doesn’t need to be drenched, just enough to prevent rust and facilitate smooth gun action.

But what if after cleaning, the barrel still shows signs of wear and tear? You must watch for pitting or rifling damage which could impact the gun’s accuracy.

The condition of your barrel will tell you when to schedule your next deep clean. Each gun is unique, but a good rule of thumb is not to wait for issues to manifest. Irregularities or build-ups can damage your gun over time, so make sure to keep on top of your regular cleaning, treating your P90 with the love and care it deserves.

Cleaning the Receiver and Slide

After you’ve nailed down the process of cleaning the P90’s barrel, it’s time to shift our focus to the receiver and the slide. These Parts of the FN P90 firearm also plays a significant role in the weapon’s overall functionality. Proper care and cleaning ensure they perform at optimum levels, enhancing the firearm’s reliability.

Dirt, grime, and debris commonly accumulate in the receiver and slide of the P90, mainly due to prolonged usage. Allowing these impurities to remain can impair the firearm’s performance. Therefore, I can’t stress enough the importance of keeping these parts clean.

Start by physically inspecting the receiver and slide. The first thing you want to look out for is any visible grit or gunk. I find that using a magnifying glass can be helpful in identifying these tiny culprits. If any debris is spotted, gently dislodge it using a soft cloth or designated gun-brush – always remember, the goal is not to scratch or mar the finish of your firearm.

Next, we move to the cleaning process proper. Just as with the barrel, a good firearm cleaning solution is your best buddy here. Douse a clean cloth in the solvent, and use this to scrub the interior of both the receiver and slide. Be systematic, be thorough! It’s easy to miss a spot, especially in the inner recesses.

Once you’re confident there’s not a speck of dirt left, it’s time to apply the gun oil. Lightly oil the receiver and slide, using a lubricating cloth or applicator. But don’t douse your P90 in oil; you want a thin film, not a puddle.

The cleanliness of your receiver and slide can significantly influence your FN P90’s performance, so don’t slack off here! Just as with the barrel, patience, attentiveness, and frequent cleaning are key to ensuring your firearm runs smoothly. Following these guidelines can lead your P90 towards an enduring lifespan of top performance.

Lubricating the FN P90

After going over how to clean the receiver and slide of your FN P90, let’s now shift our focus to lubricating the firearm. It’s noteworthy that a correctly lubricated P90 will substantially increase its overall performance and durability. By properly oiling the key components of the firearm, you can ensure smoother operation and reduced internal wear and tear.

Firstly, apply a small amount of high-quality gun oil to the recoil springs and guide rods. Put a drop or two on the front and back of the recoil springs and guide rods, respectively. Next, lubricate the bolt, bolt carrier, and recoil assembly lightly. Always remember – you’re not frying chicken so don’t drench components in oil!

Move on to the barrel, lubricating the exterior and the chamber. However, ensure that you refrain from adding any oil into the bore. This might seem counter-intuitive but excessive oil in the bore could cause potential hazards, such as increased pressure during firing.

Furthermore, you need to lubricate points where metal parts come into direct contact with each other during the operation. In the FN P90, these points include the hammer and sear engagement surfaces and the slide rails. A light coat of oil can facilitate a more fluid interaction between these surfaces, improving the performance and life of the firearm.

I must reinforce this – oil application should be a minimalist act. Excessive lubrication can attract and trap more dust and grime, causing rapid fouling of the firearm and eventually reducing the completeness and effectiveness of the cleaning process.

Just to refresh your memory, your P90 requires regular maintenance, so clean and lubricate it after every use. This is especially crucial if you’re using it in a harsh environment.

Lastly, always use cleaners and lubricants designed specifically for firearms. While common household products might seem like a tempting alternative, they might not provide the same protective qualities as gun-specific products. Plus, who’s saying you can’t treat your firearm to something special, you know, just like how you’d treat yourself?

Crafting the perfect lubrication regimen for your FN P90 requires attention to detail and thoughtful use of resources. So, strap up and let’s move on to the next part of keeping this masterpiece up and running.

Reassembling the FN P90

Once every component is clean and lubricated, it’s time to reassemble the FN P90. Don’t worry if you’re feeling a bit wary. It may seem daunting but, believe me, it’s easier than it looks. Just follow these instructions carefully, and you’ll have your firearm back in working order in no time.

Firstly, reinstall the recoil springs and guide rods onto the bolt carrier. Slide the bolt onto the rods after this initial setup. Now here’s a thing that you have to remember. Make sure the bolts are aligned correctly. Now, ease the bolt carrier into the upper receiver.

Next, re-assemble the barrel by sliding it into the front of the receiver. This is essential for the firearm’s accuracy. Once you’ve done that, replace the retaining pin.

The recoil assembly follows where you should slot it into place inside the bolt carrier. The charging handles should then be slotted, pulling the carrier back to lock into position. Once assembled, perform a quick function test to make sure all parts are well-fitted. You’ll know if there’s any snag as you pull the trigger. If any resistance or snag is felt, disassemble and troubleshoot.

As I said, it may seem complex, but if you take your time, you’ll get the hang of it faster than you might think. Each time you clean your firearm, you’ll learn, you’ll grow, you’ll become better.

Just remember that regular maintenance and using high-quality products are key to your FN P90’s optimal performance. Treat your firearm with respect, and it’ll reward you with reliability and longevity. Once you’ve finished reassembling, you’re all set and it’s ready for your next trip to the ranges.

Always be patient with the process. Take each step slowly and surely and you’ll surely master this. And, hey! Don’t forget your safety glasses. Your eyes are precious!

Alright, that covers the reassembly.

Remember, there’s always more to learn about maintaining your FN P90 — stay tuned for more in-depth guidance on how to ensure your firearm is performing at its optimal level.

Final Check and Test-Firing

Once all steps of reassembling the FN P90 are successfully carried out, I then proceed to the final check and test-firing. Ensuring that the firearm functions correctly after the entire cleaning and maintenance process isn’t an option but a must.

The first step of the final check involves a detailed inspection of the firearm. I ensure all parts are present and correctly aligned. I want to make sure the bolt, bolt carrier, barrel, and recoil assembly are all correctly placed and firm. It’s also important to note that no obstructions or debris should interfere with the components.

For scrupulous function testing, I manually cycle the firearm several times. Doing this allows me to check for any malfunctions or misalignments that might have occurred during reassembly. While doing this, I uphold the utmost safety measures making sure the gun isn’t loaded while cycling.

With everything appearing in order, it’s time to step into the range for a test-firing. This is the best way to confirm both the accuracy of the reassembly process and the functionality of the firearm.

Careful attention is given to how the firearm performs during this stage. It’s key to observe if each round fires off smoothly and if the firearm reloads correctly. While testing, I make a point of firing several rounds, as irregularities might not show up immediately.

This makes the process of cleaning and maintaining the FN P90 is more than just a routine – it’s essential for ensuring that the gun performs optimally and its lifespan is extended. Emphasizing regular maintenance and the use of high-quality products can’t be overstated.

Company in the processes of reassembling, final check, and test-firing, makes the difference between an efficient or malfunctioning firearm. Keeping an FN P90 in perfect condition is about more than just appearance; it’s about accuracy, reliability, and safety. Achieving all these takes skill, patience, and dedication.

With the last round fired and test complete, I’m now confident that the gun is well maintained, thoroughly cleaned, and reassembled correctly, ready for whatever it takes.


So there you have it. I’ve walked you through the steps of cleaning your FN P90, from disassembling and scrubbing to lubricating and reassembling. It’s all about precision and attention to detail. Make sure you’re aligning the components correctly and conducting a thorough function test after reassembly. Remember, a final check and test-fire are essential to ensure the firearm is in top shape. Regular maintenance is key to preserving your P90’s performance and longevity. Don’t skimp on quality when it comes to cleaning products. Your firearm deserves the best. Keep it clean, keep it safe, and your FN P90 will serve you well for years to come.

Frequently Asked Questions

1. Why is cleaning and maintaining my FN P90 important?

Regular cleaning and maintenance of your FN P90 is crucial for its functionality and longevity. Cleaning helps remove dirt, debris, and fouling that can affect the firearm’s performance, while maintenance ensures that all components are in good working condition.

2. How do I reassemble my FN P90 after cleaning?

To reassemble your FN P90, follow these steps: 1) Align the recoil springs and guide rods, 2) Insert the bolt into the bolt carrier, 3) Attach the bolt carrier to the barrel, 4) Reinsert the recoil assembly, 5) Ensure proper alignment and function by performing a function test.

3. Why is careful alignment and function testing important during reassembly?

Careful alignment and function testing are vital during reassembly to ensure that all components are correctly aligned and that the firearm functions as intended. This helps prevent malfunctions and ensures the safety and optimal performance of your FN P90.

4. Should I perform a final check and test-fire after reassembling my FN P90?

Yes, it is highly recommended to perform a final check and test-fire after reassembling your FN P90. This allows you to conduct a detailed inspection, ensure proper alignment, and identify any obstructions or debris. Function testing and test-firing also confirm the accuracy and functionality of your reassembled firearm.

5. What can I do to maintain optimal performance and longevity of my FN P90?

To maintain optimal performance and longevity of your FN P90, it is essential to regularly clean and lubricate the firearm. Additionally, using high-quality cleaning products and following the manufacturer’s recommended maintenance schedule will help ensure reliable performance and extend the lifespan of your FN P90.