Introduction
The Allure of the AR-9
The AR-9 platform has seen a surge in popularity, becoming a favorite for enthusiasts and shooters seeking a compact, pistol-caliber carbine. One of the key innovations enhancing this platform is the side charging upper. This guide dives deep into AR-9 side charging uppers, exploring their advantages, important factors to consider, and best practices for both use and maintenance.
Defining the Side Charging Advantage
The appeal of the AR-9 is undeniable. It offers a familiar platform for those acquainted with the AR-15, but chambered in a more affordable and readily available cartridge: the 9mm. This combination provides a balance of manageable recoil, cost-effectiveness, and the ability to utilize existing AR-15 accessories.
A New Perspective
The introduction of the side charging upper has further refined the AR-9 experience. This innovative design moves the charging handle from its traditional location on the rear of the upper receiver to the side, typically the left side. This seemingly small change unlocks a range of benefits that can significantly improve handling, speed, and overall user experience.
The Purpose of this Guide
This article will provide a thorough overview of AR-9 side charging uppers. We will examine their advantages, break down the crucial considerations when selecting one, and explore essential maintenance practices to ensure optimal performance and longevity.
Enhanced Ergonomics: The Core Advantage
Focus on the Side Charging Design
The side charging design is fundamentally about enhancing ergonomics. This design places the charging handle within easier reach of the support hand, whether you are right or left-handed.
The Benefits of a Better Handle
The primary advantage stems from how quickly and efficiently you can manipulate the charging handle. With a traditional rear charging handle, shooters often need to shift their grip on the pistol grip, or contort their body slightly to gain leverage. The side charging handle, however, allows for a more natural and direct charging motion. This translates to faster charging times, particularly important during reloads or when clearing malfunctions. The benefits here are significant, especially in dynamic shooting scenarios.
Optic Optimization
This shift in charging handle location also allows for better access, especially for those using optics, whether they are mounted on a high rise or are larger. It can reduce the potential for the charging handle to interfere with the optic or its mount, maintaining a clear sight picture and reducing the need for awkward maneuvers.
Speeding Up the Action
Efficiency in Motion
The enhanced ergonomics of a side charging system can translate into faster overall operation, particularly when speed is essential. A well-executed charging action can quickly ready the firearm for action, crucial in defensive scenarios or when dealing with a jam.
Faster Reloads
The location of the charging handle can also facilitate more efficient manipulations during reloads. With a quick, lateral pull, shooters can chamber a fresh round and re-engage the target with minimal delay.
Consistency and Accuracy
The side charging design allows shooters to maintain a more consistent grip and shooting posture, promoting accuracy and faster target acquisition. This can be a marked advantage in competitive shooting and any situation where split-second decisions matter.
Reduced Interference for Better Handling
No More Obstructions
The placement of the charging handle on the side offers a significant advantage regarding interference. Because the traditional rear charging handle is eliminated, there’s no longer an obstruction for larger optics, rear-mounted iron sights, or other accessories that might otherwise interfere with the charging process. This provides greater flexibility in customizing your AR-9 for your specific needs.
Maneuverability Maximized
In tight spaces or when navigating confined areas, the side charging handle’s position can prevent snags or collisions with gear or obstacles. This is particularly relevant in tactical situations or scenarios where maneuverability is critical. The design also simplifies the use of certain aftermarket modifications, such as extended charging handles or ambidextrous options, allowing for a truly customized and efficient setup.
Considering Your Choice
The Right Selection is Key
Choosing the right AR-9 side charging upper involves several important considerations. The optimal choice depends on your individual needs, shooting style, and intended application.
Compatibility is Crucial
The first, and most crucial, step is ensuring compatibility. The side charging upper you select must be compatible with your existing lower receiver. These uppers generally work with standard AR-15 lowers, but make certain the lower is designed to accept a 9mm conversion system or a dedicated AR-9 lower. Always double-check the manufacturer’s specifications to ensure that the charging handle mechanism is compatible.
Buffer and Spring Considerations
Consider the buffer weight and spring rate of your lower. Incorrectly matched components can lead to malfunctions such as failure to feed or extract. Some side charging uppers may also require a special bolt carrier group (BCG) designed for the side charging mechanism.
Materials and Build Quality Matter
The materials used in construction are critical to the durability and reliability of any AR-9 component. Look for uppers machined from high-quality aluminum alloys, such as 7075-T6. This alloy provides exceptional strength-to-weight ratio and is known for its resistance to wear and tear. Ensure that the upper receiver is properly heat-treated for added longevity.
The Significance of Finishes
The finish is equally important. Consider options such as hard-coat anodizing, which is a durable finish that helps to protect the aluminum from corrosion and abrasion. The finish should also provide a smooth surface for the charging handle to operate.
Charging Handle Design: Selection Matters
The charging handle itself is a pivotal component. Consider the size and shape, which should provide a comfortable and secure grip. Ambidextrous options are excellent for left-handed shooters, or those who want more flexibility in their manipulations. A larger handle can be easier to grasp, especially with gloved hands.
Metal versus Composite Handles
The handle’s material is important for durability. Metal charging handles are often preferred for their longevity, while composite materials can offer a lighter option. Consider the handle’s attachment mechanism and make sure it is strong and reliable.
Barrel Lengths and Threading Choices
The barrel is another key area for customization. Barrel length can significantly impact the AR-9’s ballistic performance, overall handling, and aesthetic. Common barrel lengths for AR-9s include short configurations (e.g., four and a half inches) for compact builds, or longer options (e.g., sixteen inches) which may be desired for better accuracy and velocity.
Muzzle Threading Considerations
The barrel threading at the muzzle is another consideration, as it determines the types of muzzle devices or suppressors you can mount. Ensure the threading is compatible with your preferred accessories and complies with all applicable laws and regulations in your area.
Researching Brands and Reviews
Before making a purchase, research the manufacturer. Reputable companies are known for their quality, customer service, and warranties. Read customer reviews to understand their experiences and the product’s performance. Pay attention to feedback about reliability, ease of use, and any issues that may have arisen. Look at professional reviews from reputable sources for a more in-depth analysis of the product.
Maintenance, Care, and Troubleshooting
The Foundation of Reliability
Proper maintenance is essential for maximizing the lifespan, reliability, and performance of your AR-9 side charging upper.
Cleaning Procedures are Vital
Regular cleaning is crucial. Disassemble the upper according to the manufacturer’s instructions. Utilize quality cleaning solvents, bore brushes, and patches to remove carbon buildup and residue from the barrel, bolt carrier group, and charging handle mechanism. Clean the charging handle itself with a brush and solvent, paying attention to any areas where grime may accumulate.
Lubrication is Key
Apply a quality lubricant to the bolt carrier group, charging handle assembly, and any other moving parts. A thin film of oil is usually sufficient. Avoid over-lubrication, as this can attract debris and cause malfunctions. Lubricate the charging handle where it interfaces with the upper receiver to ensure smooth operation.
Common Problems and Solutions
Failure to feed or eject can be due to a range of issues. These issues include magazine problems, incorrect buffer weights, or a dirty chamber. Clearing the firearm and inspecting the magazine, bolt carrier group, and chamber is the first step.
Charging Handle Malfunctions
Malfunctions relating to the charging handle might be caused by a damaged handle, debris interfering with its movement, or a loose attachment. Inspect the handle and the surrounding mechanism for any obstructions. The charging handle itself should be regularly checked for wear and tear.
Best Practices for Success
Assembly and Installation
Follow best practices to maximize the user experience. Assemble and install the upper receiver carefully. Ensure all components fit together properly.
Always Prioritize Safety
When operating your AR-9 side charging upper, prioritize safety. Always point the muzzle in a safe direction, even when handling the firearm. Always check the chamber before handling. Wear appropriate eye and ear protection.
Ammunition Considerations
Selecting the right ammunition can optimize performance. Experiment with different bullet weights and types to find the optimal load for your setup. Pay attention to recoil and accuracy.
Accessorizing Your AR-9
You can personalize your AR-9 to suit your needs. The AR-15 platform allows you to add accessories like optics, lights, and foregrips. Choose accessories carefully, paying attention to quality, compatibility, and your intended use.
Legal Considerations
Understand and adhere to all local, state, and federal laws regarding firearms ownership, modifications, and use. Familiarize yourself with regulations about barrel length, suppressors, and other related items.
In Conclusion
Summing Up the Advantages
The AR-9 side charging upper presents a significant upgrade over the traditional design, improving ergonomics, speed, and overall handling. By carefully considering the factors outlined in this guide and practicing proper maintenance, you can build a reliable, high-performing AR-9. With a side charging upper, you can take your shooting experience to the next level.
The Next Steps
This is more than just a modification; it’s an enhancement that empowers you.
If you are ready to get one, research reputable manufacturers such as (insert brand names here) to get the most out of your experience.
