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Ruger Ar-556 Mpr is one of the best brands in the world of guns.
But some people face problems with this model.
In this guide, we explain 10 common problems of this model with unique solutions. So let’s start now.
Ruger Ar-556 Mpr Problems
The Ruger AR-556 MPR, while generally well-regarded, does have some noted issues users should be aware of. These mainly revolve around occasional jamming and issues with the rifle’s gas system.
Some users have reported that the rifle can jam if not meticulously maintained or when used with certain types of ammunition.
Besides, the gas system, which is usually quite reliable, can sometimes show signs of overgassing, leading to an increased rate of wear.
1. Failing to Feed
Cause
The Ruger AR-556 MPR can occasionally experience feed failures, which are usually a result of not having enough gas pressure to cycle the action completely.
This can be because of a dirty gas tube or if the rifle’s gas system is not properly adjusted for the ammunition being used.
It’s crucial to understand that the alignment of the gas system and the cleanliness of the gas tube play a significant role in the functioning of the rifle.
Solution
To rectify the feed failure issue, first, give your gas tube a thorough cleaning to remove any obstructions.
If this doesn’t solve the problem, you may need to adjust your rifle’s gas system to better match the ammunition you’re using.
Remember, regular maintenance and understanding your ammo specifications can help prevent most feed failures.
2. Ejecting Issue
Cause
The primary reason for the ejecting issue in Ruger AR-556 MPR is often due to an improperly installed or worn extractor spring.
The extractor spring is responsible for gripping the rim of the cartridge and pulling it out of the barrel once it’s been fired.
If it’s not properly installed or if it becomes worn over time, it may fail to effectively extract the cartridge, leading to the ejecting issue.
The key takeaway here is to regularly check the state of your extractor spring and ensure it is installed correctly.
Solution
For fixing the ejecting issue, the first step is to inspect the extractor spring and replace it if necessary.
It’s a relatively easy and inexpensive fix that most firearm enthusiasts will be able to do themselves with the right tools.
However, if you’re not comfortable working on your own firearm, it’s always best to take it to a professional.
Remember, safety should always come first when handling firearms. Proper maintenance and regular check-ups are crucial for effective operation.
3. Magazine Loading Issues
Cause
Magazine loading issues with the Ruger AR-556 MPR might typically be due to a malfunctioning magazine spring or the use of incorrect or damaged ammo.
It’s a bummer when this happens, especially when you’re in the heat of a thrilling shooting session.
Solution
Don’t fret, though! The first solution is to check your magazine spring and replace it if it’s worn out. You could also try using different ammo.
If the ammo isn’t the right size or if it’s damaged, it can cause loading problems.
Remember, always ensure you’re using the correct, undamaged ammo to avoid any hiccups in your shooting experience.
4. Bolt Catch Not Working
Cause
The bolt catch not working on your Ruger AR-556 MPR might boil down to a few potential culprits.
It could be due to wear and tear of the bolt catch itself, a misaligned bolt catch spring, or a faulty buffer retainer.
Over time, these components can degrade or misalign, interfering with smooth operation.
Solution
The fix depends on the identified cause. If it’s a worn-out bolt catch, replace it with a new one. For a misaligned spring, resetting it should do the trick.
A faulty buffer retainer, on the other hand, will also require replacement.
Remember, always ensure to use quality replacement parts and if you’re not confident in doing the repairs yourself, seek the help of a professional gunsmith.
5. Trigger Reset Issue
Cause
The trigger reset issue in the Ruger AR-556 MPR often stems from the disconnector failing to catch the hammer.
This failure could be due to a manufacturing defect or wear and tear over time.
It could also be a result of improper cleaning, causing a buildup of grime and dirt affecting the trigger function.
Regular inspection of the disconnector and keeping the firearm clean can prevent this problem.
Solution
To resolve the trigger reset issue, the first step is to disassemble the firearm, clean it thoroughly, and inspect it for any physical damage.
If the problem persists, professional gunsmithing advice should be sought, as it may require replacing the affected parts.
Remember, it’s always wise to consult a professional when handling firearms. Safety should never be compromised.
6. Cycling Problems
Cause
One common issue with cycling is a flat tire. This can happen because of sharp objects on the road, like nails or glass shards, which pierce the tire and cause it to deflate.
Flat tires can be a real downer, especially during long rides.
Solution
Luckily, this is an easy fix! Carry a bike repair kit whenever you go cycling. This should include a spare inner tube, tire levers, and a mini pump.
With these tools, you can fix a flat tire in no time. Remember, practice makes perfect, so don’t be discouraged if you struggle the first few times.
With a bit of patience and perseverance, you’ll become a pro at fixing flat tires.
7. Short Stroke Issue
Cause
When it comes to the short stroke issue on the Ruger Ar-556 Mpr, the leading cause often boils down to an insufficient amount of gas reaching the bolt carrier group (BCG).
This can be due to a misaligned gas block, a clogged gas tube, or even using ammunition that doesn’t generate enough pressure.
Remember, the gas system is the heartbeat of your AR-556 MPR, and any hiccup can lead to a short stroke issue.
Solution
One way to troubleshoot and fix the short stroke issue is to first check the gas block alignment. If the alignment is off, it can restrict the necessary gas flow to the BCG.
A correctly aligned gas block is critical for optimum performance. If the gas block is aligned and you’re still experiencing issues, inspect the gas tube for any obstructions and remove them if present.
Lastly, try using different ammunition. Some ammo may not produce enough gas pressure to fully cycle the bolt.
Experiment with different ammunition types until you find the one that your Ar-556 MPR runs best with.
8. Multiple Shots at Once
Cause
One of the common issues with the Ruger AR-556 MPR is that it sometimes fires multiple shots with a single trigger pull.
This typically happens due to a malfunctioning disconnector in the trigger assembly or wear in the sear surfaces.
The trigger assembly is a crucial part of the firearm, and any irregularities can lead to unintentional discharge of multiple rounds.
Remember: A malfunctioning disconnector or worn sear surfaces can cause the rifle to fire multiple shots.
Solution
The best way to resolve this issue is to inspect the trigger assembly and replace any worn-out components.
If you are inexperienced in firearm maintenance, it’s highly recommended to take your firearm to a certified gunsmith for repair.
Regular cleaning and inspection of your firearm can prevent this problem from happening in the future.
Take note: Regular inspection and maintenance is the key to preventing unexpected multiple shots. When in doubt, consult a certified gunsmith.
9. Failure to Lock Back Slide
Cause
The “Failure to Lock Back Slide” issue with the Ruger AR-556 MPR is often due to wear and tear on the slide-stop lever spring or an improperly installed slide-stop lever.
Over time, the spring can lose its tension, and if the lever isn’t correctly positioned, it can fail to engage the slide.
Solution
The solution to this issue is pretty straightforward. First, inspect the slide stop lever spring for any signs of wear. If it’s worn out, replace the spring.
In case the slide stop lever is improperly installed, ensure it’s positioned correctly.
If you’re unsure about any of these steps, it’s always wise to consult with a professional gunsmith. Remember, safety comes first!
Conclusion
In wrapping up, it’s clear that the Ruger AR-556 MPR has its share of quirks and issues.
Yes, it’s not perfect – it has had its feed and ejection problems, the trigger isn’t the smoothest, and some users have reported issues with the bolt carrier group.
However, it’s important to remember that every firearm will have its pros and cons, and the AR-556 MPR is no exception.
With its impressive versatility and robustness, it remains a popular choice among firearm enthusiasts.
As with any firearm, knowing its strengths and weaknesses allows us to utilize it more effectively and troubleshoot any problems that may arise.
FAQs
Is the Ruger MPR reliable?
Absolutely, the Ruger MPR is known for its solid reliability, making it a trusted choice among firearm enthusiasts.
Is the Ruger AR-556 accurate?
You bet! The Ruger AR-556 boasts excellent accuracy, perfect for both new and experienced shooters.
Is Ruger AR-556 good for home defense?
Definitely, with its easy handling and sufficient stopping power, the Ruger AR-556 makes for a strong home defense weapon.
What is the twist rate for the Ruger AR-556 MPR?
The Ruger AR-556 MPR features a 1:8″ twist rate, aiding in accurate bullet stabilization.
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