5 Ruger AR 556 Problems & Expert Solutions

Are you a boastful firearm owner and face different Ruger AR 556 problems? Fear not! Many owners are facing the same issues.

However, the Ruger AR 556 stands as a solid gun with a reputation for reliability. It has a pretty heavy-looking barrel.

But, the problems urged me to find good and reliable solutions.

So, I wanted to resolve the frustration of my brothers. In this article, we will explore the miracles that will make a world of difference.

Let’s Go!

Issues and Fixes at a Glance

5 ProblemsWith Their Quick Solutions
Double FeedingOiling, give some TLC.
Bolt Not Staying OpenSwitch out the stock mag catch with a sturdier bolt catcher.
Slide Lock ProblemReplacement: install a stronger buffer.
Misfiring IssueExamination; upgrade to a specialized trigger.
Under-Gassed RifleAdjust the glass block.
Ruger AR 556 Problems

Ruger AR 556 Problems and Their Practical Solutions

1. Double Feeding:

First, double feeding is one of the most frustrating issues with the Ruger AR 556.

It’s like a stubborn donkey refusing to cooperate when you need it most.

Picture this: you’re at the range, bam, and the rounds should load and chamber smoothly. But instead, you’re left with a jam.

It’s a crucial situation, and your firearm decides to act up.

Double feeds can happen for various reasons, from poor maintenance to internal flaws or a faulty magazine.

Huh, it’s a problem that needs addressing to secure your Ruger AR 556, which is always ready to shoot when you need it to.

Read More: Ruger Mini 30 Problems with Effective Solutions


Okay, so it’s crucial to address the problem promptly.

  1. I’ve found that ensuring your bolt is well-oiled can work wonders in preventing double feeding.
  2. Also, giving your firearm some TLC by performing a single-round test to check for smooth ejection can help pinpoint any lingering issues.
  3. Double-checking the sync between your recoil spring and magazine spring is also essential, as any misalignment can lead to malfunctions.
  4. If you’re still experiencing problems, consider replacing the extractor. A worn or damaged one can often be the root cause of double-feeding woes.

By following these steps, you can ensure it operates like a charm on the range.

2. Bolt Not Staying Open:

The next concern is the bolt not staying open after the last round.

This failure to lock open after firing the final bullet can be frustrating for shooters. This is especially true during range sessions or training drills.

The culprit often lies in the bolt catcher mechanism, which may fail to rise and hold the bolt in place.

As a result, the recoil spring may slam the bolt back into place prematurely. It hinders the shooting experience.

While stock magazines are typically used with this rifle, some users have reported similar issues even with aftermarket options.

Addressing this bolt malfunction is crucial for ensuring reliability and performance. Right?


A simple change can make a world of difference in resolving this problem.

Switch out the stock mag catch with a sturdier bolt catcher. You can ensure that the bolt reliably stays open after the last round is fired.

This solution addresses the weak link in the chain of components. It prevents failures and improves the overall reliability of the firearm.

Trust me, with this easy modification, the Ruger AR 556 can live up to its good reputation.

3. Slide Lock Problem:

Ahh! The slide lock issue. Here, the slide fails to lock back after the last round is fired.

It’s super annoying when you’re aiming, expecting a trigger pull. Oops, the slide doesn’t cooperate.

Believe me, it’s a bummer when it happens, especially during intense shooting sessions.

However, it’s worth noting that some users have found that loose gas block screws or a bolt stop that needs adjustment may be giving grief.

Overall, this issue is a hassle that needs a solution.


The fix for this issue is twofold and relatively simple.

Firstly, check if the slide lock needs to be replaced or if it’s just a worn-out gas block screw causing trouble.

Once identified, installing a stronger buffer spring can make a night and day difference in performance.

Trust me, these solutions work and can save you from considering buying a new rifle.

4. Misfiring Issue:

Next, one common issue that some Ruger AR 556 owners encounter is a misfiring issue It often stems from trigger mechanism malfunctions.

I’ve experienced firsthand how trigger mechanism components like the disconnector and hammer can sometimes fail to function correctly. It results in misfires or burst shots.

So, a solution is very necessary.


The solution involves examining the stock trigger and its components.

The retaining pins and hammer play crucial roles in the firing mechanism. However, upgrading to a specialized trigger like the CMC drop-in trigger can provide a more reliable solution.

With a single-stage, 3.5-lb pull trigger, shooters can expect a smoother and more consistent single-shot experience.

Conduct a visual check of the trigger assembly. It can also help identify any malfunctions or inconsistencies that may be causing misfires.

5. Under-Gassed Rifle:

Last, one recurrent problem that often arises is a gas issue, particularly with sluggish ejection.

This can be attributed to the rifle being under-gassed. It causes shell ejection to be less than optimal.

The barrel and gas tube interactions play a significant role in this malfunction, along with the bolt carrier group (BCG).

When the ammo used is on the heavier side, it exacerbates the gas issue. This leads to a frustrating experience for shooters.


So, one solution that has proven effective is adjusting the gas block.

By fine-tuning the gas flow, you can ensure smoother ejections and cleaner operations. This adjustment has significantly improved the performance of the rifle.

It leads to better reliability and fewer headaches on the range.

Consider giving this solution a try before switching to a lighter BCG or exploring other routes to resolve the issue.

My Final Conclusion:

Okay, so I’ve found it to be a well-crafted and affordable option suitable for both beginners and seasoned users alike.

While it’s generally reliable, there have been instances where problems arise, such as double feeding and gas issues.

However, the good news is that these issues often have straightforward fixes with a bit of elbow grease.

Simple adjustments can often provide a solution to these headaches.

Overall, despite its downsides, the Ruger AR 556 proves to be a smart choice with simple solutions for any gun enthusiast willing to put in the effort.

My Friends Feedback:

I discussed the Ruger AR 556 with friends, which has brought to light various issues they’ve encountered. This is particularly true with jamming and stuck bolts.

During range trips, some have faced challenges with rounds getting stuck in the chamber. It leads to frustrating interruptions in shooting sessions.

Despite trying different suggestions and seeking advice from gunsmiths and experts, such as those from the School of American Rifle, the problem persisted.

Some attributed it to weak magazine springs or overgassing. Others experimented with lubrication and adjustable gas blocks to find a solution.

Despite these challenges, many friends still appreciate the price point and reliability of the Ruger AR 556 for their shooting needs.

Common Questions Asked About Ruger AR 556:

Is the Ruger AR-556 reliable?

The Ruger AR is constructed with top-notch materials. It features 7075-T6 hard-coat anodized aluminum forgings. The bolt is made from shot-peened and proof-tested 9310 steel. The bolt carrier is crafted from 8620 steel. Its flat-top upper receiver is fashioned from aerospace-grade 7075-T6 aluminum forging. This firearm is engineered for durability.

Is Ruger a good brand for AR-15s?

The Ruger AR-556 MPR is a versatile firearm. It’s quickly become a popular choice for many due to its direct-gas-impingement M4-style design. It provides reliability and quality, with some distinct Ruger features, all at an affordable price.

Which country made Ruger?

Ruger, or Sturm, Ruger & Company, Inc., is an American firearms manufacturer. They’re headquartered in Southport, Connecticut, and have production facilities in Newport, New Hampshire; Mayodan, North Carolina; and Prescott, Arizona.

What is 5.56 good for?

For precision shooting, consider a match load. If you’re looking for reliability and affordability, standard 5.56 ammo is a good option. This cartridge has long been the go-to choice for military use and is versatile enough for competition, hunting, training, and self-defense purposes.

Is 5.56 better than 9mm?

For home defense, consider the 9mm. While not as potent as the 5.56 options, its shorter size makes it easier to handle indoors. If you’re aiming for long-distance accuracy, 5.56mm guns are likely your best choice.

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