6 Common Ruger PC Carbine Problems and Troubleshooting

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Ruger PC Carine Problems

I’ve had my fair share of experiences with the Ruger PC Carbine, and it’s been quite a journey. While this firearm offers a lot in terms of versatility and performance, there’s no denying that Ruger PC Carbine Problems have cropped up along the way.

From occasional reliability issues to concerns about its weight and ergonomics, navigating these challenges has been an integral part of my ownership experience.

In this discussion, I’ll delve into the various Ruger PC Carbine Problems I’ve encountered and share some insights on how to address them, helping fellow enthusiasts make the most of this intriguing firearm.

Ruger PC Carbine Problems
Ruger PC Carbine Problems

Something about Ruger PC Carbine Autoloading Rifle

The Ruger PC Carbine is a semi-automatic pistol-caliber carbine chambered in 9mm Luger. It is a blowback-operated rifle with a 16.12-inch cold-hammer-forged chrome-moly barrel. The barrel is fluted to reduce weight and has a 1/2×28 threaded muzzle. The carbine comes with an interchangeable magazine well that can accept Ruger SR/Security-9 magazines or Glock 9mm magazines.

The PC Carbine has a polymer trigger guard and a Magpul MOE adjustable buttstock. The handguard is made of aluminum and has M-Lok slots for mounting accessories. The carbine has a Picatinny rail on the top of the receiver for mounting optics.

The Ruger PC Carbine is a lightweight and versatile carbine that is well-suited for home defense, plinking, and hunting small game. It is also a popular choice for competition shooting.

  • Caliber: 9mm Luger
  • Action: Blowback-operated
  • Barrel length: 16.12 inches
  • Magazine capacity: 10, 17, 33, or 50 rounds (depending on magazine type)
  • Overall length: 32.25-35.5 inches
  • Weight: 6.8-7.3 pounds
  • Sights: Adjustable ghost ring rear sight, protected blade front sight
  • Other features: Picatinny rail, interchangeable magazine well, M-Lok handguard

6 Common Ruger PC Carbine Problems

Glock Magazine Problems

The Ruger PC Carbine is designed to accept Glock magazines, which are generally reliable. However, some users have reported issues with certain Glock magazines not feeding rounds smoothly or consistently.

This problem can sometimes be attributed to worn-out or damaged Glock magazines, rather than a fault with the PC Carbine itself.

To address this issue, users should inspect their Glock magazines for wear and tear and consider replacing them if necessary. Trying different magazines or cleaning and lubricating existing ones can also help resolve feeding problems.

Ejector Problems

Ejector problems can manifest as spent casings not ejecting properly or failing to clear the ejection port, causing jams and malfunctions.

Common causes of ejector issues include dirt, debris, or fouling around the ejection port, a worn or damaged ejector, or improper ammunition.

To address ejector problems, users should ensure the firearm is kept clean, inspect the ejector for damage, and use quality ammunition that meets Ruger’s specifications. If the ejector is damaged, it may need to be replaced by a gunsmith.

Jamming Problems

Jamming issues can occur when rounds fail to feed properly, causing stoppages in the firing cycle.

These problems can be caused by a variety of factors, including improperly seated or damaged rounds, weak magazine springs, or a dirty or fouled chamber.

To mitigate jamming problems, users should regularly clean and maintain their Ruger PC Carbine, use high-quality ammunition, and inspect magazines for wear or damage.

Extractor Issues

Extractor issues involve the failure of the extractor to grip the spent casing, leading to failure to eject or extract malfunctions.

Common causes of extractor problems include a dirty or fouled extractor, a worn extractor claw, or a damaged extractor spring.

Users can address extractor issues by keeping the firearm clean and ensuring that the extractor and its components are in good condition. Replacing worn or damaged extractor components may be necessary.

Feeding Failures

One of the most frequent complaints with the Ruger PC Carbine is that it fails to properly feed rounds from the magazine into the chamber, especially during rapid shooting. This is often due to compatibility issues with certain magazines.

The carbine is designed to work with Glock pistol magazines. Stick with OEM 9mm Glock magazines in 10, 15, 17, or 33 round capacities for the best reliability. Aftermarket or ProMag magazines often cause feeding issues. Heavier magazine springs can also help.

Finally, check and polish the feed ramp if needed so rounds smoothly feed upwards into the chamber. A debris-free, smooth feed path is critical.

Trigger Reset Problems

Some users report the Ruger PC Carbine’s trigger failing to properly reset after each shot. This prevents the trigger from being pulled for follow-up shots.

A weak or faulty return spring is often the culprit. Try stretching the spring or replacing it with an aftermarket trigger assembly. Contacting Ruger customer service can also help diagnose and resolve this safety-critical issue.


Q: My Ruger PC Carbine is not cycling properly. What should I do?

If your PC Carbine is experiencing cycling issues, it could be due to various factors such as ammunition, magazine problems, or fouling in the action. Here are some steps to troubleshoot:

  • Ensure you are using high-quality, factory-loaded ammunition.
  • Clean and lubricate your firearm regularly, paying attention to the action and bolt.
  • Check your magazines for damage or dirt. Try different magazines to see if the issue persists.

Q: I’m having accuracy problems with my PC Carbine. How can I improve accuracy?

Achieving accuracy with any firearm requires practice and proper technique. However, here are some tips to help improve accuracy:

  • Ensure your optic or sights are properly zeroed.
  • Consistently use the same ammunition and bullet weight.
  • Focus on proper grip, stance, and trigger control during shooting.

Q: My PC Carbine is jamming frequently. What should I do?

Frequent jams can be frustrating. Here are some steps to address this issue:

  • Inspect your magazines for damage or wear.
  • Clean and lubricate the firearm thoroughly, paying attention to the chamber and action.
  • Check for damaged or worn parts and consider contacting Ruger’s customer support for assistance.

Q: My Ruger PC Carbine won’t disassemble properly. What am I doing wrong?

The Ruger PC Carbine is designed for easy takedown, but if you’re having trouble, follow the manufacturer’s instructions carefully. Ensure that the firearm is unloaded, and be patient when reassembling. If you continue to experience difficulties, seek assistance from a knowledgeable gunsmith or Ruger’s customer support.

Q: Is it normal for my PC Carbine to have a stiff trigger?

The trigger pull on firearms can vary. Ruger PC Carbines typically have a standard trigger. If you find the trigger pull too heavy or stiff for your liking, consider exploring aftermarket trigger upgrade options, but ensure that any modifications comply with local laws and regulations.

Q: How can I clean and maintain my PC Carbine properly?

Cleaning and maintenance are essential for firearm reliability. Refer to the owner’s manual for detailed instructions on disassembly, cleaning, and lubrication. Ensure the firearm is unloaded before performing any maintenance, and always follow safety procedures.

Q: I want to upgrade my PC Carbine with accessories. Are there any compatibility issues to be aware of?

Ruger PC Carbines often have accessory rails and aftermarket options available. However, ensure that any accessories you purchase are compatible with the specific model and caliber of your PC Carbine. Always follow safety guidelines and local laws when adding accessories.


In my exploration of the Ruger PC Carbine, I’ve come across a few noteworthy Ruger PC Carbine Problems. While it’s a reliable and versatile firearm loved by many, some users have reported occasional issues with the firearm’s feeding and extraction mechanisms, as well as issues related to aftermarket magazines.

It’s important for potential buyers and current owners to be aware of these potential challenges and to educate themselves on proper maintenance and troubleshooting techniques.

However, for a more comprehensive understanding of these issues and how to address them, I urge you to explore other informative articles available at Weapon Specialists. There, you’ll find a wealth of knowledge and insights into firearms, including in-depth discussions about the Ruger PC Carbine’s performance and maintenance.

Last Updated on October 28, 2023 by

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