Superlative Arms adjustable gas blocks are renowned for their precision and reliability, offering shooters unparalleled control over their AR-15's gas system. This guide provides comprehensive instructions for installation and adjustment, ensuring optimal performance and minimizing malfunctions. Whether you're a seasoned gunsmith or a first-time installer, this detailed walkthrough will help you master your Superlative Arms gas block.
Understanding Your Superlative Arms Gas Block
Before diving into installation, let's familiarize ourselves with the key features of a Superlative Arms adjustable gas block. These blocks typically feature a set screw mechanism for precise adjustment of gas flow. This allows you to fine-tune the system to accommodate different ammunition types, suppressors, and barrel lengths, ultimately enhancing reliability and reducing wear on your weapon. The specific model you have will determine the exact method of adjustment, so carefully review your specific product's documentation.
Tools and Materials Required
Before you begin, gather the necessary tools and materials:
- Superlative Arms Adjustable Gas Block: Ensure you have the correct model for your gas tube diameter.
- AR-15 Upper Receiver: Clean and free of obstructions.
- AR-15 Gas Tube: Properly sized for your barrel and upper receiver.
- Appropriate Wrench(es): This will vary based on your specific gas block model. Consult your instruction manual for specifics. A set of quality Allen wrenches is usually required.
- Gas Tube Wrench: A dedicated gas tube wrench will make installation and removal significantly easier and prevent damage.
- Punch (optional): A small punch can help align the gas tube during installation.
- Torque Wrench (recommended): Using a torque wrench ensures you achieve the correct tightening force without over-tightening, preventing damage to your parts. Consult your Superlative Arms instructions for recommended torque specifications.
- Cleaning Solvent and Patches (optional): Cleaning the gas tube and upper receiver before installation is good practice.
Step-by-Step Installation Instructions
Note: Always prioritize safety. Unload your firearm and double-check it's clear before beginning any work.
-
Disassemble the Upper Receiver: Carefully remove the barrel nut, handguard, and bolt carrier group from your upper receiver. This provides clear access to the gas tube.
-
Remove Existing Gas Block (If Applicable): If you're replacing an existing gas block, carefully remove it using the appropriate wrench. Take note of how it was oriented to ensure correct reinstallation of the new gas block.
-
Install the Gas Tube (If Necessary): If you are installing a new gas tube, carefully insert it into the gas tube channel within the upper receiver, ensuring it's properly seated.
-
Install the Superlative Arms Gas Block: Align the Superlative Arms adjustable gas block over the gas tube. Use the appropriate wrench to securely fasten the gas block, ensuring it's properly aligned and seated against the barrel. Do not overtighten.
-
Securely Fasten the Gas Block: Tighten the set screws to hold the gas block firmly in place. Again, consult your specific Superlative Arms instructions for recommended torque values and tightening procedures.
-
Reassemble the Upper Receiver: Reinstall the handguard, barrel nut, and bolt carrier group, ensuring all components are properly secured.
Gas Block Adjustment
The adjustment process for your Superlative Arms adjustable gas block depends on the specific model. However, generally, it involves turning the adjustment screw (typically located on the side of the gas block) to increase or decrease gas flow. A smaller opening will reduce gas flow, while a larger opening increases it.
-
Initial Testing: Start with a moderate gas setting. Fire several rounds and observe the function of your weapon.
-
Fine Tuning: If you experience malfunctions like stovepipes or failure to eject, increase gas flow by turning the adjustment screw. If you observe excessive recoil or wear, decrease gas flow.
-
Testing with different ammunition: Different types of ammunition may require different gas settings. The ideal setting may need adjusting depending on the ammunition used.
-
Suppressor Considerations: If you plan on using a suppressor, you will likely need to adjust the gas system to compensate for the additional back pressure.
Troubleshooting
- Gas Block Loose: Check that the set screws are securely tightened.
- Gas Tube Misaligned: Ensure the gas tube is properly seated and aligned within the upper receiver.
- Malfunctions: Systematically adjust the gas settings until reliable cycling is achieved.
Remember to always consult your Superlative Arms instruction manual for specific details regarding installation and adjustment. If you encounter difficulties, consult a qualified gunsmith. This guide provides general instructions, and specific steps might vary depending on your specific model. Always prioritize safety and proper handling of firearms.
