The .45-70 Government cartridge, a venerable round with a rich history dating back to the American Civil War, continues to enjoy immense popularity among enthusiasts. Its potent stopping power and versatility make it ideal for hunting large game, target shooting, and even black powder cartridge enthusiasts. For those wanting to build their own .45-70 rifle, numerous build kits offer a compelling path to a customized firearm. This guide explores the key aspects of choosing and utilizing a 45-70 AR build kit.
Understanding the Appeal of a 45-70 AR Build Kit
Building a rifle from a kit presents several advantages:
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Cost Savings: Compared to purchasing a complete rifle, building from a kit often proves more economical, especially when factoring in the cost of potentially unnecessary features included in factory-made guns.
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Customization: Kits allow for personalized choices, selecting components to match individual preferences and shooting styles. This lets you tailor the firearm to its intended purpose – be it hunting, target practice, or competitive shooting.
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Learning Experience: The process of assembling a rifle offers a valuable learning experience, fostering a deeper understanding of firearms mechanics and functionality.
Key Components of a 45-70 AR Build Kit
A typical .45-70 AR build kit will include the essential components to create a functioning rifle. These typically include:
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Receiver Set: This is the foundation of your rifle, encompassing the upper and lower receivers. These are often the most expensive parts of the kit, and choosing high-quality materials is crucial.
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Barrel: The barrel's length and twist rate significantly impact accuracy and performance. A longer barrel typically enhances velocity and accuracy, while a shorter barrel offers maneuverability. The twist rate affects projectile stability. Consider your intended use when making these choices.
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Bolt Carrier Group (BCG): The BCG is the heart of the rifle's action, responsible for cycling cartridges. Look for a BCG made from durable materials and precisely manufactured for reliable operation.
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Gas System: The gas system regulates the pressure used to cycle the action. Different gas system designs (e.g., direct impingement, piston) impact recoil and reliability. Research the pros and cons of each to determine the best fit for your needs.
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Handguard: The handguard protects the barrel and provides a mounting point for accessories. Material choices (e.g., aluminum, polymer) influence weight, durability, and heat resistance.
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Other Essential Parts: A build kit may also contain other crucial parts, including the trigger assembly, buffer tube, stock, and sights.
Choosing the Right 45-70 AR Build Kit
Several factors need careful consideration when selecting a .45-70 AR build kit:
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Reputation of the Manufacturer: Choose a reputable manufacturer known for producing high-quality components.
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Kit Completeness: Carefully examine what components are included in the kit. Some kits might require purchasing additional parts, impacting the overall cost.
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Reviews and Feedback: Read reviews from other builders to gain insights into the kit's quality, ease of assembly, and performance.
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Intended Use: The intended purpose of the rifle (e.g., hunting, target shooting) influences the choice of barrel length, sights, and other components.
Building Your 45-70 AR: A Step-by-Step Approach
While specific steps vary depending on the chosen kit, the general process involves:
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Thorough Planning and Parts Acquisition: Gather all the necessary tools and components before beginning. A well-organized workspace is crucial.
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Receiver Assembly: Begin by assembling the upper and lower receivers, carefully following the manufacturer's instructions.
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Barrel Installation: Carefully install the barrel, ensuring proper alignment and tightness.
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Bolt Carrier Group Installation: Install the BCG, making sure it functions smoothly.
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Gas System Installation: Install and adjust the gas system appropriately.
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Stock and Handguard Attachment: Attach the stock and handguard, ensuring a secure fit.
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Testing and Fine-tuning: After assembly, test-fire the rifle at a shooting range to check for accuracy, function, and reliability. Any adjustments needed should be carefully made.
Safety First!
Always prioritize safety when assembling and using firearms. Familiarize yourself with proper firearm handling techniques, follow all manufacturer's instructions, and seek guidance from experienced gunsmiths if needed. Never handle firearms without proper training and understanding of safety protocols.
This guide provides a starting point for those interested in building a .45-70 AR rifle from a kit. Remember to conduct thorough research, choose reputable components, and prioritize safety throughout the process. Enjoy the rewarding experience of crafting your own custom firearm.
