Choosing the right gas block is crucial for optimal functionality and reliability of your AR-15 platform. While standard gas blocks get the job done, a click adjustable gas block offers superior control and customization, making it a popular choice among serious shooters and competitive enthusiasts. This guide delves into the intricacies of click adjustable gas blocks, explaining their benefits, how they work, and factors to consider when making your purchase.
What is a Click Adjustable Gas Block?
A click adjustable gas block allows for precise regulation of gas flow to the bolt carrier group (BCG). Unlike fixed gas blocks, which offer a single, non-adjustable setting, click adjustable gas blocks feature a mechanism that lets you precisely dial in the gas pressure. This is typically achieved through a series of clicks, hence the name, allowing for incremental adjustments. Each click represents a small change in gas flow, offering fine-tuned control over the system's operation.
How Does a Click Adjustable Gas Block Work?
The core functionality hinges on a precisely machined adjustment screw. Turning this screw alters the size of the gas port, effectively controlling the amount of gas diverted to cycle the action. This adjustment is critical for mitigating issues stemming from variations in ammunition, barrel length, and suppressor use.
Key Benefits of Using a Click Adjustable Gas Block:
- Reduced Recoil: By fine-tuning gas pressure, you can lessen felt recoil, improving your shooting experience and follow-up shot speed.
- Enhanced Reliability: Adjusting the gas flow can resolve issues like short stroking, over-gassing, and failure to extract/eject, particularly with suppressed firearms or ammunition variations.
- Customization for Different Ammunition: Different ammunition types (e.g., heavier bullets, different powder charges) can significantly impact gas pressure. A click adjustable gas block allows you to compensate, ensuring consistent function across various loads.
- Improved Suppressor Function: Running a suppressor significantly increases gas pressure within the system. A click adjustable gas block enables you to dial down the gas appropriately, preventing malfunctions often associated with suppressed AR-15s.
- Precise Tuning: The "click" system offers repeatable adjustments. You can return to a known, preferred setting easily.
Factors to Consider When Choosing a Click Adjustable Gas Block:
Several factors influence the selection of the ideal click adjustable gas block for your needs:
- Material: High-quality gas blocks are typically constructed from steel or hardened aluminum. Steel offers superior durability, while aluminum provides lighter weight.
- Type of Adjustment: While most use a set screw, understand the mechanism. Ease of adjustment and the clarity of the clicks are critical considerations.
- Gas Block Design: Low-profile gas blocks are preferred for use with a low-profile gas tube, while standard height blocks are suitable for higher gas tube setups.
- Reputation of the Manufacturer: Select a reputable manufacturer with a proven track record of producing high-quality, reliable components. This is crucial given the importance of the gas block to the firearm's proper function.
Installation and Maintenance:
Installing a click adjustable gas block usually involves removing the existing gas block, installing the new one, and then properly aligning the gas tube. While it’s often considered a DIY project, if you are uncomfortable working with firearms, seeking professional assistance from a qualified gunsmith is highly recommended. Proper maintenance involves regular cleaning and lubrication to ensure smooth operation and prevent potential issues.
Conclusion:
A click adjustable gas block is a valuable upgrade for any AR-15 owner seeking improved control, reliability, and adaptability. By understanding the benefits and factors discussed above, you can select a gas block that enhances your shooting experience and ensures your rifle performs reliably in various conditions. Remember always to prioritize safety and seek professional assistance if needed.
