The Mossberg 590 is a legendary pump-action shotgun, prized for its reliability and versatility. Adding a magazine extension significantly boosts its firepower, making it even more effective for home defense, hunting, or competition. This guide dives deep into the specifics of a Mossberg 590 with an 18.5" barrel and a magazine extension, exploring its capabilities, modifications, and considerations.
Understanding the Mossberg 590 Platform
The Mossberg 590's popularity stems from its robust design, simple operation, and affordable price point. Its features often include:
- Reliable Action: The pump-action mechanism is known for its smooth and consistent operation, even under duress.
- Durable Construction: Built to withstand harsh conditions, the 590 is a workhorse that can handle heavy use.
- Versatility: Available in various configurations, including different barrel lengths, stock types, and finishes, it caters to diverse needs.
- Customization: A wide range of aftermarket parts, including magazine extensions, allow for significant customization.
The 18.5" barrel is a popular choice for many users because it offers a good balance between maneuverability in close quarters and adequate range for most applications.
The Advantages of a Magazine Extension
Adding a magazine extension to your Mossberg 590 with an 18.5" barrel offers several key benefits:
- Increased Capacity: The most significant advantage is the increased ammunition capacity. A standard 590 holds 5+1 rounds. Extensions can increase this to 7+1, 8+1, or even more, depending on the extension's design. This extra capacity can be crucial in home defense or hunting situations.
- Enhanced Tactical Capabilities: A higher capacity allows for more rapid follow-up shots, a critical factor in self-defense or tactical scenarios.
- Improved Reliability: Some extended tubes are made from higher-quality materials than the factory tube, potentially improving overall reliability.
Choosing the Right Magazine Extension
The market offers various magazine extensions for the Mossberg 590. Key factors to consider include:
- Capacity: Determine the desired capacity increase. Extensions range from adding a few extra rounds to significantly expanding capacity.
- Material: Extensions are typically made from steel or aluminum. Steel is more durable but heavier; aluminum is lighter but may be less durable.
- Finish: Choose a finish that complements your shotgun and offers corrosion resistance. Common finishes include matte black, parkerized, and cerakote.
- Manufacturer: Reputable manufacturers produce extensions designed to function reliably and safely. Research different brands and read customer reviews.
Table 1: Comparison of Popular Mossberg 590 Magazine Extensions
| Manufacturer | Capacity (Rounds) | Material | Finish Options | Price Range ($) |
|---|---|---|---|---|
| Mesa Tactical | +2, +4, +6 | Aluminum | Black, FDE | 80-150 |
| ATI | +2, +4, +5 | Aluminum | Black, Camo | 60-120 |
| Nordic Components | Various | Steel, Aluminum | Multiple | 70-180 |
(Note: Prices and availability are subject to change.)
Installation and Considerations
Installing a magazine extension is generally straightforward but requires some mechanical aptitude. Always consult the manufacturer's instructions. Improper installation can lead to malfunctions or even injury.
Consider the following:
- Function Test: After installation, thoroughly test the firearm to ensure it functions flawlessly. Cycle numerous rounds and check for any binding or malfunctions.
- Legal Compliance: Check your local laws and regulations regarding magazine capacity before purchasing and installing an extension. Some jurisdictions have restrictions on magazine capacity for firearms.
- Reliability: Even high-quality extensions can sometimes cause feeding issues. Using appropriate ammunition and maintaining the shotgun are critical.
Conclusion: Enhancing the Mossberg 590
Adding a magazine extension to your Mossberg 590 with an 18.5" barrel is a popular and effective way to enhance its capabilities. By carefully considering capacity, material, manufacturer, and installation, you can significantly upgrade your shotgun for home defense, hunting, or competition. Remember always to prioritize safety and comply with all applicable laws and regulations. Choosing the right extension requires research and consideration of your specific needs and preferences.