The Mossberg 590 is a legendary pump-action shotgun, renowned for its reliability and versatility. However, its factory trigger can leave something to be desired. Many shooters find the trigger pull heavy, gritty, and inconsistent, impacting accuracy and overall shooting experience. Fortunately, upgrading the 590's trigger is a relatively straightforward process that can dramatically improve its performance. This guide dives deep into the world of Mossberg 590 trigger upgrades, outlining various options and considerations for both novice and experienced gunsmiths.
Understanding the Factory Trigger
Before we explore upgrade options, it's crucial to understand the shortcomings of the Mossberg 590's factory trigger. The primary issues are typically:
- Heavy Pull Weight: The factory trigger pull is often quite heavy, requiring significant finger strength to activate. This can lead to fatigue during extended shooting sessions and negatively impact accuracy, particularly in rapid-fire situations.
- Gritty Feel: The trigger mechanism can feel gritty or rough, further hindering smooth and consistent trigger breaks. This inconsistency can affect accuracy and make the gun less enjoyable to shoot.
- Creep: Many users report noticeable "creep"—a noticeable amount of movement in the trigger before the gun fires. This lack of precision reduces the shooter's ability to control the shot.
Options for Mossberg 590 Trigger Upgrades
Several upgrade paths exist, ranging from simple adjustments to more involved replacements. Let's break them down:
1. Trigger Job (Polishing and Adjustment)
For those comfortable with basic gunsmithing, performing a trigger job can yield noticeable improvements. This involves:
- Disassembly: Carefully disassembling the trigger group. (Numerous online resources provide detailed instructions; proceed with caution and refer to your firearm's manual).
- Polishing: Smoothing rough surfaces within the trigger mechanism using fine grit sandpaper and polishing compounds. This reduces friction and results in a smoother trigger pull.
- Adjustment: Adjusting the trigger's overtravel and pre-travel. This fine-tunes the trigger's movement for a more crisp and predictable break.
Caution: Improper disassembly or adjustment can damage your firearm. If you're not comfortable with gunsmithing, seek professional help.
2. Aftermarket Trigger Kits
Several companies manufacture aftermarket trigger kits specifically designed for the Mossberg 590. These kits typically include upgraded trigger components, such as:
- Improved Trigger Bar: A redesigned trigger bar with improved geometry for a lighter and smoother pull.
- Reduced Overtravel: Components that limit the trigger's rearward movement, eliminating unnecessary slack.
- Enhanced Hammer Spring: A lighter hammer spring can contribute to a lighter trigger pull.
Installing an aftermarket kit requires disassembly of the trigger group, similar to performing a trigger job. However, the kit provides pre-modified components, simplifying the process.
3. Full Trigger Group Replacement
Replacing the entire trigger group with a high-quality aftermarket unit offers a complete upgrade. This is the most comprehensive solution, but it also requires a higher level of skill and understanding of firearm mechanics. Ensure any replacement part is compatible with your specific Mossberg 590 model.
Choosing the Right Upgrade
The best Mossberg 590 trigger upgrade depends on your skill level, budget, and desired level of improvement.
- Beginner-Friendly: A simple polishing and adjustment (trigger job) is the most accessible option, offering noticeable improvements without requiring specialized tools or parts.
- Intermediate: An aftermarket trigger kit provides a more significant upgrade with pre-modified components, simplifying the installation process.
- Advanced: Replacing the entire trigger group delivers the most substantial improvement but demands advanced gunsmithing skills and expertise.
Safety First
Remember, working on firearms requires caution and respect for safety protocols. Always:
- Unload the firearm: Completely unload your shotgun before beginning any work.
- Point the firearm in a safe direction: Maintain a safe direction of the muzzle at all times.
- Use appropriate tools: Employ the correct tools for disassembly and assembly to prevent damage.
- Refer to the manual: Consult your firearm's manual for detailed instructions and safety precautions.
By carefully considering your options and prioritizing safety, you can significantly enhance your Mossberg 590's shooting experience with a well-executed trigger upgrade.
