Mossberg 500 and 590 shotguns are renowned for their reliability and versatility, making them popular choices for hunting, home defense, and sport shooting. A crucial component of these shotguns is the slide tube assembly, especially for those using extended magazines. This guide delves into the Mossberg 500/590 7 3/4" slide tube assembly, covering its function, common issues, and maintenance.
Understanding the Mossberg Slide Tube Assembly
The slide tube assembly is more than just a tube; it's the heart of your shotgun's magazine system. It houses the shotgun shells, allowing for quick and reliable feeding. The 7 3/4" length specifically allows for the use of extended magazine tubes, increasing your capacity significantly. This extended capacity is particularly useful for hunting or tactical situations. The assembly typically includes the tube itself, a follower, a spring, and a retaining spring. Each part plays a vital role in the smooth operation of your shotgun.
Key Components and Their Functions:
- Slide Tube: This is the main cylindrical component that holds the shotgun shells. The length determines the magazine capacity. A 7 3/4" tube allows for significantly more shells than the standard length.
- Follower: This component rides atop the shells inside the tube, pushing them forward as they are fed into the chamber. A properly functioning follower is crucial for reliable feeding.
- Spring: This compressed spring pushes the follower and shells forward, ensuring a consistent feed. A worn or broken spring can lead to malfunctions.
- Retaining Spring: This spring secures the tube assembly in place, preventing it from moving or detaching during operation.
Common Problems and Troubleshooting
While generally robust, the slide tube assembly can experience issues over time, especially with heavy use. Some common problems include:
1. Malfunctions due to a Worn Spring:
- Symptom: Sluggish feeding, jams, or failure to feed shells consistently.
- Solution: Replace the spring. A weak spring can't provide the necessary force to push shells reliably.
2. Follower Issues:
- Symptom: Shells getting stuck, follower binding, or inconsistent feeding.
- Solution: Inspect the follower for damage or debris. Clean it thoroughly and, if necessary, replace it.
3. Tube Damage:
- Symptom: Bent tube, dents, or other physical damage.
- Solution: Repair or replace the damaged tube. A compromised tube can lead to malfunctions and potential safety hazards.
Maintenance and Cleaning
Regular maintenance is essential for ensuring the smooth operation of your Mossberg shotgun's slide tube assembly.
- Regular Cleaning: After each use, clean the slide tube and follower with a suitable cleaning solvent and brush. Remove any dirt, debris, or residue that might hinder the smooth operation.
- Inspection: Periodically inspect the spring for wear and tear. Replace it if it shows signs of fatigue or damage.
- Lubrication: Lightly lubricate the slide tube and follower with a high-quality gun oil to reduce friction and prevent wear.
Finding Replacement Parts
If you need to replace parts of your 7 3/4" slide tube assembly, ensure you purchase genuine Mossberg parts or parts from reputable aftermarket suppliers. Using substandard parts can compromise the reliability and safety of your shotgun.
Conclusion
The Mossberg 500/590 7 3/4" slide tube assembly is a critical component for reliable shotgun function. Understanding its components, potential issues, and maintenance requirements is essential for ensuring safe and effective operation of your firearm. By performing regular cleaning and inspection, you can significantly extend the lifespan of your slide tube assembly and maintain the optimal performance of your Mossberg shotgun. Remember to always consult your owner's manual for detailed instructions and safety precautions.
