The Smith & Wesson M&P 9mm Pro Series is a popular choice among both law enforcement and civilian shooters. However, like any firearm, it’s not immune to potential problems. This guide delves into common issues reported by M&P 9mm Pro Series owners, offering troubleshooting advice and preventative measures. Remember, always prioritize safety and consult a qualified gunsmith if you encounter any significant malfunctions.
Common M&P 9mm Pro Series Problems and Solutions
This section addresses frequently reported issues, providing practical solutions and insights into potential causes.
1. Failure to Feed/Eject
This is perhaps the most common issue with semi-automatic pistols, and the M&P 9mm Pro Series is no exception. Failure to feed can stem from several factors:
- Magazine Issues: Worn or damaged magazine springs, follower issues, or improperly seated magazines are frequent culprits. Try different magazines to isolate the problem. If the problem persists with multiple magazines, the issue may lie elsewhere.
- Ammunition Problems: Using ammunition that's too light, too dirty, or has inconsistent casing dimensions can lead to feeding problems. Try different, high-quality ammunition from reputable manufacturers.
- Dirty or Damaged Components: A build-up of dirt, grime, or lubricant can impede smooth cycling. Regular and thorough cleaning is crucial. Inspect the feed ramp for damage or burrs.
- Recoil Spring Issues: A weak or broken recoil spring can prevent the slide from cycling properly. Inspect the spring for signs of wear or damage.
Failure to eject often relates to:
- Extractor Issues: A broken or worn extractor can fail to properly grip the spent cartridge case, resulting in failure to eject.
- Ejector Issues: Similarly, a damaged or misaligned ejector can prevent proper ejection.
- Ammunition Problems: Again, using inconsistent or problematic ammunition can contribute to ejection issues.
Troubleshooting Steps:
- Clean the pistol thoroughly.
- Inspect the magazine for damage or wear.
- Try different magazines and ammunition.
- Check the extractor and ejector for damage.
- Inspect the feed ramp for obstructions or damage.
- If the problem persists, seek professional help from a qualified gunsmith.
2. Slide Not Locking Back on Empty Magazine
This usually points to a problem with the slide stop mechanism or the magazine itself.
- Slide Stop Lever Issues: The slide stop might be worn, damaged, or not engaging properly with the magazine follower.
- Magazine Issues: A weak magazine spring can prevent the follower from pushing the slide stop lever high enough to engage.
Troubleshooting Steps:
- Check the slide stop lever for damage or wear.
- Inspect the magazine follower and spring for damage or wear.
- Try different magazines.
- If the problem persists, consider professional inspection.
3. Light Primer Strikes
This indicates insufficient force from the firing pin to ignite the primer.
- Firing Pin Issues: A bent or damaged firing pin, or a problem with the firing pin spring, can cause light primer strikes.
- Ammunition Issues: Using ammunition with hard primers can also contribute.
Troubleshooting Steps:
- Inspect the firing pin for damage.
- Check the firing pin spring for proper tension.
- Try different ammunition.
- If the problem persists, a gunsmith should inspect the firearm.
4. Accuracy Issues
Inconsistent accuracy isn't necessarily a mechanical problem but could result from:
- Shooting Technique: Proper grip, stance, and trigger control are essential for accuracy.
- Ammunition: Different ammunition can exhibit varying accuracy levels.
- Sight Alignment: Ensure your sights are properly aligned and adjusted for your individual needs.
Troubleshooting Steps:
- Review your shooting technique and seek professional training if necessary.
- Try different types of ammunition.
- Check your sights for proper alignment.
- If problems persist after addressing these factors, consult a gunsmith.
Preventative Maintenance
Regular maintenance is crucial to prevent many potential problems. This includes:
- Regular Cleaning: Clean your M&P 9mm Pro Series after each range session.
- Lubrication: Apply high-quality gun lubricant to appropriate parts.
- Inspection: Regularly inspect the firearm for wear and tear.
- Magazine Care: Keep your magazines clean and properly lubricated.
By following these guidelines and promptly addressing any issues, you can maintain the reliability and accuracy of your M&P 9mm Pro Series for years to come. Remember, safety is paramount. If you're unsure about any aspect of maintaining or troubleshooting your firearm, always seek the assistance of a qualified gunsmith.
