The A2 rear sight, a staple on AR-15 platforms, requires a specialized tool for proper installation. Getting it right is crucial for accurate shooting. This guide dives deep into the A2 rear sight installation tool, covering its uses, types, and best practices for a successful installation. We'll cover everything you need to know to confidently install your A2 rear sight.
Understanding the A2 Rear Sight and its Installation Challenges
The A2 rear sight, known for its durability and simplicity, is a critical component of the AR-15's sighting system. However, its installation isn't always straightforward. The sight's design, particularly the way it's fitted into the upper receiver, can make installation difficult without the right tools. Forcing the sight can lead to damage to the sight itself or the upper receiver, rendering both unusable.
Why You Need a Specialized Tool
Attempting to install an A2 rear sight without the proper tool is risky. You'll likely struggle with getting the sight properly seated, potentially causing:
- Damage to the sight: Bending or breaking the sight itself.
- Damage to the upper receiver: Scratching or marring the receiver's finish.
- Improper alignment: Leading to inaccurate shooting.
- Frustration: A potentially lengthy and frustrating process.
Types of A2 Rear Sight Installation Tools
Several types of A2 rear sight installation tools exist, each with its own pros and cons. The most common are:
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Punch and Mallet Method: This traditional method uses a punch (often a brass punch to prevent damage) and a mallet to carefully tap the sight into place. While inexpensive, it requires precision and care to avoid damage.
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Specialized A2 Sight Installation Tools: These tools are purpose-built for this task and offer more control and precision than the punch and mallet method. They usually feature a clamping mechanism that securely holds the sight while applying even pressure during installation. These tools are often more expensive but minimize the risk of damaging the sight or receiver.
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Receiver Vise Block: While not strictly an installation tool, a receiver vise block is crucial for safely holding the upper receiver during installation, regardless of the method used. This prevents the receiver from moving or shifting during installation, ensuring proper alignment.
Choosing the Right Tool
The best tool for you depends on your budget and experience level. If you're on a tight budget and comfortable with using hand tools carefully, the punch and mallet method might suffice. However, for most users, investing in a purpose-built A2 sight installation tool is highly recommended. This tool provides superior control and minimizes the risk of damage.
Step-by-Step A2 Rear Sight Installation (Using a Specialized Tool)
Before beginning, ensure you have:
- A2 Rear Sight: Ensure it's the correct sight for your upper receiver.
- A2 Rear Sight Installation Tool: Choose a reputable brand.
- Receiver Vise Block: Essential for secure and stable installation.
- Soft Cloth or Rag: To protect the receiver's finish.
- Light Lubricant (Optional): A small amount can help with insertion.
Steps:
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Secure the Upper Receiver: Clamp the upper receiver securely in the receiver vise block. This is crucial to avoid damage.
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Prepare the Sight: Inspect the sight for any damage or debris. Lightly lubricate the base of the sight (optional).
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Insert the Sight: Insert the A2 rear sight into the installation tool, ensuring it's properly seated.
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Position the Tool: Carefully align the tool with the rear sight's mounting location on the upper receiver.
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Apply Even Pressure: Use the tool to gently and evenly press the sight into place. Avoid excessive force.
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Check Alignment: Once installed, check the sight's alignment for proper function.
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Test: Test fire your weapon in a safe environment to ensure proper functionality.
Troubleshooting and Common Problems
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Sight Won't Go In: Check for obstructions or debris in the receiver. Make sure the sight is properly seated in the tool and aligned correctly.
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Sight is Crooked: Remove the sight and repeat the installation process, ensuring proper alignment. Use the receiver vise block for stability.
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Damage to Sight or Receiver: Inspect both components carefully. If damage is present, you may need to replace one or both parts.
Conclusion: Mastering A2 Rear Sight Installation
Installing an A2 rear sight accurately is crucial for the functionality and safety of your AR-15. While the punch and mallet method works, using a dedicated A2 rear sight installation tool significantly reduces the risk of damage and provides greater control. Remember, safety and proper technique are paramount. Take your time, use the right tools, and follow these steps for a successful and worry-free installation. Improper installation can lead to serious issues, so always prioritize safety and precision.