Installing a Superlative Arms adjustable gas block can significantly enhance the performance and reliability of your AR-15. This guide provides detailed, step-by-step instructions to ensure a smooth and successful installation. Remember, firearm modifications require caution and familiarity with safe gun handling practices. If you are unsure about any step, consult a qualified gunsmith.
Tools and Materials You'll Need
Before you begin, gather the necessary tools and materials:
- Superlative Arms Adjustable Gas Block: Ensure you have the correct model for your barrel diameter.
- Appropriate Wrench: This will depend on the gas block's design; some use set screws, others utilize a clamping mechanism. Consult your specific gas block's instructions.
- Punch (brass is recommended): For aligning and driving pins.
- Hammer: A mallet or dead-blow hammer is ideal.
- Barrel Vise Block: Essential to protect your barrel during the installation process.
- Upper Receiver: Your AR-15 upper receiver.
- Lower Receiver (optional): For testing functionality.
- Cleaning Kit: For cleaning your barrel and upper receiver before installation.
- Safety Glasses and Hearing Protection: Always prioritize safety.
- Torque Wrench (Recommended): For precise tightening of screws to prevent damage.
- Gas Tube: Make sure you have the correct gas tube for your system.
Step-by-Step Installation Instructions
This guide provides a general overview; always refer to Superlative Arms' specific instructions included with your gas block. Variations may exist depending on the model.
1. Preparation is Key
- Clean your upper receiver and barrel: Thoroughly clean both components to remove any debris that could interfere with installation.
- Secure your barrel: Use a barrel vise block to firmly secure your barrel without damaging it. Ensure the barrel is clamped securely and evenly.
2. Remove the Existing Gas Block (if applicable)
- If you're replacing an existing gas block: Carefully remove it, noting the orientation and any special features. This often involves removing set screws or releasing a clamping mechanism.
3. Install the Superlative Arms Gas Block
- Position the gas block: Carefully slide the Superlative Arms adjustable gas block onto the barrel, ensuring it's properly aligned with the gas port.
- Secure the gas block: Tighten the set screws (or use the clamping mechanism) according to the manufacturer's specifications. Use a torque wrench if available to avoid over-tightening.
- Check for alignment: Ensure the gas block is perfectly aligned with the gas port before tightening fully. Misalignment can lead to malfunction.
4. Install the Gas Tube
- Connect the gas tube: Insert the gas tube into the gas block and connect it to the upper receiver. Make sure it's securely seated and aligned.
5. Test and Adjust
- Reassemble your AR-15: Carefully reassemble your upper and lower receivers.
- Test fire (at a safe range): Test fire your AR-15 at a safe shooting range to check for proper gas function. You may need to adjust the gas block settings to find the optimal setting for your specific ammunition and load.
Adjusting the Gas Block
Superlative Arms adjustable gas blocks allow you to fine-tune the gas flow. This is crucial for reliable cycling with different ammunition types and loads. The adjustment mechanism varies by model but generally involves a small screw or dial. Refer to the manufacturer’s instructions for precise adjustment procedures.
Troubleshooting
If you encounter issues during installation or operation, carefully review the manufacturer's instructions. If problems persist, consult a qualified gunsmith.
Disclaimer: This guide provides general instructions. Always consult the specific instructions provided by Superlative Arms for your particular gas block model. Improper installation can damage your firearm or cause injury. Firearm modification should only be undertaken by individuals with the appropriate knowledge and experience. Always practice safe gun handling techniques.
