Understanding the AR10 Platform
The AR10’s Legacy
The AR10 rifle, a favorite among firearm enthusiasts, is known for its potent chamberings and inherent accuracy. This guide will dive deep into the world of AR10 complete upper build kits, providing you with the knowledge to select and build a top-tier upper assembly that matches your individual needs and preferences.
AR10 Compatibility
A critical consideration is AR10 compatibility. There are several different patterns on the market, and the most common is the DPMS pattern, while Armalite also has their own design. While it is tempting to assume that all AR10 parts are interchangeable, that is far from the truth. The most important element is to ensure the upper receiver, the lower receiver and all parts inside those two are compatible with each other. Always confirm your upper’s compatibility with your existing or planned lower receiver before making a purchase.
Caliber Selection and Performance
Caliber choice significantly impacts your AR10’s performance. The .308 Winchester, perhaps the most popular chambering, delivers excellent power and effective range for hunting and tactical applications. However, rounds like 6.5 Creedmoor are gaining traction, offering flatter trajectories, reduced recoil, and superior long-range ballistics, at the expense of some muzzle energy. Consider the intended use of your rifle when choosing a caliber.
Why Upgrade?
Upgrading your upper receiver can offer a world of improvements. It’s a way to enhance accuracy, upgrade to a more durable barrel, change the caliber, install more ergonomic features, and tailor your rifle to your precise requirements. If the original upper’s components are worn, or if it is not providing optimal performance, a complete upper build kit is an effective solution for improved function and precision.
Components of an AR10 Complete Upper Build Kit
The Upper Receiver
The upper receiver is the foundation upon which the rest of the components are assembled. Upper receivers are available in various materials, but forged aluminum is a popular choice, known for its balance of strength and weight. Another option is a billet upper receiver, which starts with a solid block of aluminum and is machined to its final form. The finish on the upper receiver also impacts its aesthetics and durability. Anodized aluminum is a common choice providing a tough, wear-resistant finish. Cerakote is another popular option. Many upper receivers also include a Picatinny rail for mounting optics.
The Barrel
The barrel is arguably the most crucial element affecting the accuracy of your AR10. Barrel length directly affects muzzle velocity and overall handling. The material used for the barrel impacts its longevity and resistance to wear. Chrome moly steel is a robust option, whereas stainless steel offers superior corrosion resistance and can sometimes provide improved accuracy. Barrel profile, which refers to the shape and thickness of the barrel, impacts weight and heat dissipation. The rate of twist, measured in inches, is a critical factor dictating the type of bullet your barrel is designed to stabilize. Select the twist rate based on the expected bullet weights you plan to use.
Bolt Carrier Group (BCG)
The bolt carrier group (BCG) is a critical component responsible for extracting, ejecting, and chambering rounds. The BCG’s material choices often vary. Steel, offering excellent durability, is a popular option. A common upgrade is a BCG that has undergone a finish like nickel boron, which reduces friction and simplifies cleaning. Before purchase, check for MPI (Magnetic Particle Inspection) and HPT (High-Pressure Testing).
Charging Handle
The charging handle allows you to manually cycle the bolt. There are various types of charging handles, from standard to extended, and ambidextrous designs. Extended charging handles provide easier access for users, especially when using optics or wearing gloves. Ergonomics are an important consideration when choosing a charging handle.
Handguard/Rail
The handguard, or rail system, provides a mounting platform for accessories and protects the barrel. There are many handguard types, including free-float, drop-in, M-LOK, KeyMod, and Picatinny. Free-float handguards do not directly contact the barrel, enhancing accuracy by minimizing stress. The length of the handguard impacts handling and the number of accessories you can attach.
Muzzle Device
The muzzle device affects felt recoil, muzzle blast, and flash signature. A flash hider helps to reduce the flash created by burning propellant. Compensators redirect propellant gasses to reduce muzzle rise, improving control during rapid firing. Always ensure that your chosen muzzle device is compatible with the barrel’s thread pitch.
Choosing the Right AR10 Complete Upper Build Kit
Defining Your Needs
Start by defining your intended use for the rifle. Will it be used for long-range target shooting, hunting, home defense, or a combination of these? The purpose will guide component choices. Define a reasonable budget. Remember that the initial price is only the beginning; consider the potential for future upgrades.
Evaluating Different Kits
When evaluating various kits, start by researching reputable manufacturers. Read online reviews and check user feedback. Consider the warranty and customer support offered by the manufacturer. Compare specifications and features. Pay close attention to barrel material, twist rate, handguard type, and the quality of the BCG.
Important Considerations
Be aware of the balance between weight and performance. A lighter rifle is more maneuverable, but it may also experience more recoil and be less stable during firing. The accuracy requirements will help to select the best barrel. Reliable and durable components are essential. Prioritize well-made components from trusted manufacturers to ensure that your rifle will perform consistently.
Maintenance and Troubleshooting
Cleaning Your AR10 Upper
Maintaining your AR10 upper is important. Regular cleaning of the BCG, chamber, and barrel will prevent malfunctions and preserve the lifespan of your components. When cleaning the bolt carrier group, be sure to disassemble it, clean all parts, and reassemble it properly.
Common Problems and Solutions
Common problems include failure to feed, failure to eject, and extraction issues. In most instances, these can be traced to ammunition problems, a dirty BCG, or a faulty magazine. Ensure that the BCG is properly lubed with a high-quality gun oil.
Building and Installing Your AR10 Complete Upper Kit
Tools and Procedures
If you’ve opted to assemble your complete upper kit, here are some general tips for assembling the upper. You will need essential tools such as a vise, a torque wrench, and a barrel nut wrench.
Basic Steps
First, make sure all of the tools are prepared. Make sure that the upper is secured in a vise. Next, ensure the barrel is correctly installed and torqued to the manufacturer’s specifications. Then, install the handguard, and complete the BCG and charging handle. After the build, check that all the parts function correctly.
Conclusion
Upgrading or building your AR10 with a complete upper kit can vastly improve your shooting experience. By selecting quality components that are right for you, you can unlock greater accuracy, reliability, and customization potential. Whether you’re a seasoned shooter or a newcomer to the platform, the opportunity to tailor your rifle to your precise needs is an exciting aspect of the AR10 experience.
Start your AR10 build today!
