Exploring 8 Common Ruger SFAR Problems and Their Solutions

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ruger sfar problems

In the world of firearms enthusiasts, the Ruger SFAR has garnered its fair share of attention and discussion. While this semi-automatic rifle offers a blend of versatility and reliability, it’s not immune to a set of common Ruger SFAR problems that have sparked numerous conversations among gun owners and aficionados alike.

In this article, I’ll explore eight of these Ruger SFAR problems, shedding light on their causes and potential solutions to help you better understand and address these issues.

Whether you’re a seasoned firearm enthusiast or a newcomer to the world of rifles, gaining insight into these common hiccups can help ensure a smoother and safer shooting experience with your Ruger SFAR.

ruger sfar problems

Ruger SFAR Specifications

Model: 5610/ 5611/ 5614/ 5615/ 5617
Caliber: 7.62 NATO / 308 Win
Capacity: 10/ 20
Barrel Length: 16.10″ / 20″
Handguard: Lite Free-Float with M-LOK® Attachment Slots/ Free-Float with M-LOK® Attachment Slots
Stock: Magpul® MOE SL®

8 Common Ruger SFAR Problems

1. Failure to Feed (FTF)

Issue: Failure to feed occurs when a cartridge doesn’t properly enter the chamber, resulting in a malfunction.


  • Check Ammunition: Ensure you’re using quality, factory-made ammunition that is compatible with your Ruger SFAR.
  • Clean and Lubricate: Keep your pistol clean and well-lubricated to reduce friction and improve feeding reliability.
  • Magazine Inspection: Examine the magazine for any damage or dirt. Replace or clean it if necessary.

2. Failure to Eject (FTE)

Issue: Failure to eject happens when spent casings are not ejected from the firearm, causing a jam.


  • Extractor and Ejector Cleaning: Thoroughly clean the extractor and ejector to ensure they are free from dirt or debris.
  • Ammunition Quality: Poor-quality ammunition can contribute to FTE issues. Use reputable ammunition brands.
  • Recoil Spring Check: Check the recoil spring for wear and replace it if necessary, as a weak recoil spring can lead to FTE problems.

3. Slide Not Locking Back After the Last Round

Issue: The slide doesn’t lock back after the last round is fired, making it difficult to determine when the magazine is empty.


  • Magazine Inspection: Inspect the magazine for any issues, such as a damaged follower or weak spring. Replace the magazine if needed.
  • Slide Stop Spring: Check the slide stop spring for wear or damage. If it’s not functioning correctly, replace it.

4. Trigger Reset Problems

Issue: Trigger reset problems can lead to issues with follow-up shots and trigger pull consistency.


  • Cleaning and Lubrication: Ensure the trigger components are clean and lubricated. Dirt or grime can impede the trigger reset.
  • Spring Inspection: Inspect the trigger return spring for damage or wear. Replace if necessary.

5. Light Primer Strikes

Issue: Light primer strikes occur when the firing pin doesn’t strike the primer with sufficient force to ignite the cartridge.


  • Ammunition Quality: Ensure you’re using good-quality ammunition with reliable primers.
  • Firing Pin Inspection: Check the firing pin for any dirt or damage. Clean or replace it as needed.
  • Striker Spring Check: Inspect the striker spring for wear and replace it if it’s causing light primer strikes.

6. Magazine Issues

Issue: Problems with magazines, such as misfeeds or failure to lock into place, can occur.


  • Magazine Cleaning: Regularly clean and inspect your magazines for dirt or debris. Replace worn-out or damaged magazines.
  • Lubrication: Apply a small amount of lubrication to the magazine’s follower and spring to improve their function.

7. Accuracy Problems

Issue: Inconsistent accuracy or shot placement issues can be frustrating.


  • Sight Adjustment: Ensure your sights are properly aligned and adjust them if needed.
  • Stance and Grip: Review your shooting stance and grip. Proper technique can significantly affect accuracy.
  • Barrel Cleaning: Keep the barrel clean and free from fouling, as a dirty barrel can negatively impact accuracy.

8. Safety Concerns

Issue: If you encounter any safety concerns, such as a malfunctioning safety or decocking mechanism, address them immediately.


  • Professional Inspection: For safety-related issues, it’s best to consult a qualified gunsmith or Ruger’s customer support for inspection and repair.
  • Follow the Manual: Always adhere to the safety guidelines outlined in your Ruger SFAR’s manual.

In conclusion, while the Ruger SFAR is generally a reliable firearm, occasional issues can arise. Most problems can be addressed through proper cleaning, maintenance, and attention to ammunition quality.

However, for safety-related issues or those requiring advanced repair, it’s advisable to seek the assistance of a qualified gunsmith or Ruger’s customer support. By maintaining your Ruger SFAR and addressing issues promptly, you can ensure its continued reliability and safe operation.

Last Updated on November 21, 2023 by

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