Understanding the Factory Trigger
Components and Function
To fully appreciate the benefits of an M&P 15-22 trigger upgrade, it’s essential to understand the mechanics of the factory trigger. The trigger system of the M&P 15-22, similar to its larger AR-15 counterparts, relies on a series of interconnected components that work in concert to release the hammer and fire the round. At the heart of the factory trigger lies the trigger itself, the hammer, the sear, and the disconnector, all housed within the lower receiver. When the trigger is pulled, it engages with the sear, which in turn releases the hammer. The hammer then strikes the firing pin, igniting the rimfire cartridge. This seemingly simple process is where the issues arise.
Shortcomings of the Factory Trigger
The factory trigger often has a heavy pull weight, meaning a significant amount of force is required to pull the trigger back and release the hammer. The “gritty” feel is often attributed to the machining tolerances and the friction between the trigger components. In many factory triggers, the engagement surfaces aren’t as finely finished as those found in higher-end aftermarket triggers. The long reset, the distance the trigger must travel forward after firing before it’s ready to engage the sear again, can also slow down follow-up shots. This combination of factors frequently leads to inconsistencies in shooting. The shooter might unintentionally jerk the trigger during the pull, leading to the bullet impacting the target away from their point of aim.
Benefits of a Trigger Enhancement
Improved Accuracy and Reduced Trigger Jerk
Investing in an M&P 15-22 trigger upgrade offers a myriad of benefits, dramatically improving your shooting accuracy and overall enjoyment of your firearm. The most immediate improvement is a lighter, smoother trigger pull. A reduced pull weight makes it easier to squeeze the trigger consistently without disturbing your aim. This means fewer flinches, tighter groupings, and a more confident shooting experience.
Enhanced Shot Placement
A smoother trigger pull also enhances accuracy. A trigger with a consistent pull, devoid of grit or creep, allows you to focus on your sight picture and target acquisition. The bullet leaves the barrel at the precise moment you intend, resulting in greater precision. You will find that you are more likely to shoot a tight group with each trigger pull.
Faster Follow-up Shots
Beyond pull weight, a short, crisp reset is a crucial factor in improving shooting speed. With a shorter reset, you’re able to get back on target faster. This enables quicker follow-up shots and allows you to maintain a higher rate of fire, which is beneficial in both training and competition. This also allows for a more fluid shooting experience, where you can engage multiple targets with speed and accuracy.
Clean Break and Predictable Trigger
Another key advantage of a trigger enhancement is a clean, predictable break. When the trigger breaks cleanly, there’s a defined point where the hammer releases. This eliminates the uncertainty associated with a gritty factory trigger, allowing for better control and more consistent results. The cleaner the break, the easier it is to anticipate the shot, which in turn enhances accuracy and speed.
Improved Shooting Experience
Ultimately, an M&P 15-22 trigger upgrade contributes to a more enjoyable shooting experience. A better trigger makes shooting more comfortable, less frustrating, and more rewarding. It allows you to fully realize the potential of your rifle and develop better shooting skills.
Trigger Upgrade Possibilities
Drop-in Trigger Kits
Fortunately, there’s a wide range of options available when it comes to upgrading your M&P 15-22 trigger, catering to various budgets and skill levels. From simple drop-in solutions to more involved component replacements, you can significantly improve your rifle’s trigger performance. One popular path is the installation of factory replacement triggers. These are often “drop-in” trigger kits, meaning that they are designed to be easily installed without requiring any gunsmithing skills. These kits typically include a complete trigger assembly, often featuring lighter pull weights, smoother travel, and shorter resets than the factory trigger. Brands like CMC Triggers and Timney Triggers are highly regarded for their drop-in trigger kits designed specifically for AR-style rifles, making them ideal for the M&P 15-22. The primary advantage of these drop-in kits is their ease of installation and relatively affordable price point. You can drastically improve your trigger performance with minimal effort and expense.
Aftermarket Trigger Components
For shooters seeking maximum customization, there are also after-market trigger components. This involves replacing individual trigger components, such as the trigger itself, the hammer, and the sear. This approach allows for greater control over the trigger’s characteristics and can provide a more tailored shooting experience. However, this method often requires more technical knowledge and may involve some gunsmithing. Installation can be more complex and may require tools and expertise. If you are considering this method, be sure to consult with a gunsmith or experienced gun owner before undertaking any work on your firearm.
Choosing the Right Trigger Improvement
Budget Considerations
Selecting the right M&P 15-22 trigger upgrade depends on several factors, including your budget, shooting style, and experience level. Consider these aspects when making your decision: Trigger upgrades can range in price from the relatively inexpensive drop-in kits to more costly individual components. Determine a budget that suits your financial needs and choose options within that range.
Matching to Your Shooting Style
If you’re primarily plinking or introducing new shooters, a drop-in trigger kit will likely suffice. However, if you’re a competitive shooter, you might want to consider higher-end upgrades that offer more precise control.
Skill Level and Technical Comfort
Drop-in kits are easy to install for most people, requiring only basic tools and instructions. Replacing individual components, on the other hand, requires more technical knowledge and a willingness to work on your firearm. If you’re unsure, consider seeking help from a gunsmith.
Importance of Research and Reviews
Read reviews from other M&P 15-22 owners to get an idea of the performance and reliability of different trigger options.
There are many excellent trigger options available for the M&P 15-22. Drop-in trigger kits, such as those offered by CMC Triggers, provide a great balance of performance and value. These kits offer a significantly improved trigger feel with a lighter pull weight, and cleaner break. For those seeking a more budget-friendly option, consider polished trigger components or a lighter trigger spring kit.
Installation Guide
While specific installation instructions may vary depending on the chosen upgrade, most drop-in trigger kits for the M&P 15-22 are designed for easy installation. It is extremely important to take appropriate safety precautions during this process.
Safety First
Always ensure the firearm is unloaded. Remove the magazine, retract the charging handle, and visually inspect the chamber to confirm it’s empty. Double-check the chamber.
Disassemble the Lower Receiver
Remove the takedown pins that hold the upper and lower receivers together. Separate the receivers. The lower receiver is where the trigger upgrade will take place.
Remove the Factory Trigger
Consult the specific instructions that come with your chosen trigger kit. You will likely need to remove the existing trigger components, which typically involves removing the trigger and hammer pins.
Install the New Trigger
Insert the new trigger assembly into the lower receiver, following the manufacturer’s instructions. Ensure all pins are properly aligned and securely installed.
Reassemble and Test
Reattach the upper receiver to the lower receiver. Function check the firearm to make sure that the trigger works correctly, and that the hammer drops when the trigger is pulled. Always perform a function check in a safe direction.
Important Note: If you are not comfortable working on firearms or have any doubts, seek the assistance of a qualified gunsmith.
Testing and Fine-Tuning
Once the trigger upgrade is installed, it’s important to test it to ensure everything is working correctly and that it functions safely. Dry-fire the rifle to check the trigger pull weight, reset, and break. Ensure the hammer falls with each trigger pull. If the pull feels excessively light or if the hammer fails to engage, there might be an issue with the installation that needs to be addressed. If you are comfortable with the installation, you might be able to adjust the trigger. Many adjustable triggers have adjustment screws, allowing for fine-tuning of the trigger pull weight and overtravel. Always consult the manufacturer’s instructions before making any adjustments. Safety is paramount, so if there’s any doubt about the trigger’s functionality, seek professional help.
Concluding Thoughts
An M&P 15-22 trigger upgrade is an investment that can significantly enhance your shooting experience. By improving the feel of the trigger pull, you’ll be able to shoot more accurately, consistently, and enjoy your time at the range more. Whether you choose a drop-in kit or individual components, the enhanced trigger will unlock the full potential of your M&P 15-22, making it more enjoyable and proficient. If you’re looking to take your M&P 15-22 to the next level, a trigger upgrade should be at the top of your list. It’s a relatively simple modification that yields significant returns, making your rifle more accurate, more fun, and more satisfying to shoot. Consider a trigger enhancement for your M&P 15-22 today, and experience the difference.
