Strike Industries Adjustable Gas Block: Tool-Less Adjustment for AR15 Gas System

• Simplify gas flow adjustments: The Strike Industries Collar Adjustable Gas Block (CAGB) offers a tool-less adjustment of your rifle's gas system to minimize recoil while ensuring reliable cycling for faster, more accurate follow-up shots and more comfortable shooting experience.
• Quick and easy configuration changes: This AR15 adjustable gas block offers six preset settings (5 open, 1 closed). You can easily rotate the collar to switch between these settings to control the amount of gas that enters the system, allowing for seamless transitions when using a suppressor or different ammunition types.
• Secure and reliable mounting: Designed with a robust clamp-on mounting system for stable attachment.
• Broad compatibility: Fits 0.750” gas block journals and Mil-Spec barrels with a gas block stop, ensuring versatility across various AR platforms.
• Innovation and quality you can trust: Strike Industries has been at the forefront of firearm accessory innovation since 2010, delivering high-performance components to enthusiasts worldwide.

Strike Industries Collar Adjustable Gas Block Review | Installation Guide

What are some common accessories to add to the Collar Adjustable Gas Block?

• Gas Tube: Connects the gas block to the bolt carrier group, essential for the gas system's function.
• Low Profile Handguard: Often required to accommodate the gas block underneath, offering a sleek and ergonomic design.
• Armorer's Wrench: Useful for tightening barrel nuts and other components during installation.
• Torque Wrench: Ensures precise torque application for gas block screws, crucial for proper function and preventing damage.
• Threadlocker: Helps secure screws and prevent them from loosening due to recoil and vibration.

Strike Industries Adjustable Gas Block Features and Specs

The Strike Industries Collar Adjustable Gas Block revolutionizes gas system management with its innovative tool-less adjustment mechanism. Designed for AR direct impingement systems, this gas block allows shooters to effortlessly switch between various gas settings, optimizing performance for different ammunition types or suppressed/unsuppressed configurations. Its intuitive collar design eliminates the need for tools, providing quick and reliable adjustments on the fly. The secure clamp-on design ensures steadfast attachment to the barrel.

Key Features

• Tool-Less Adjustment: Easily switch between 6 preset gas settings (5 open, 1 closed) without the need for additional tools.
• Works with Virtually Any AR-15 Ammunition. Includes 5.56, .300 BLK, 7.62 and many more.
• Reliable Cycling and Less Wear: Provides precise control over gas flow to prevent under and over-gassing. This helps to avoid malfunctions and improves the longevity of components.
• Quickly Change Between Suppressed and Unsuppressed Shooting: Tune your rifle's gas system shooting by simply rotating the collar without the need for tools.
• Secure Clamp-On Design: Ensures stable and reliable attachment to the barrel.
• Optimized Performance: Allows for fine-tuning of the gas system for various ammunition and shooting conditions.

Technical Specifications

• Compatibility: 0.750 Inch gas block journals, Mil-Spec barrels with gas block stop
• Recommended Torque Value: No more than 15 in/lbs for clamp screws

What's in the box of the Strike Industries CAGB?

• (1) Gas Block Housing
• (1) Gas Block Rotator Collar
• (3) Clamp Screws
• (1) Spring Loaded Detent
• (1) Threadlocker
• (1) Warning card

Strike Industries Collar Adjustable Gas Block FAQs

What makes the Strike Industries CAGB special?

The CAGB is a .750 adjustable gas block that stands out due to its innovative tool-less adjustment system, offering 6 preset gas settings that allow for quick and easy optimization of your rifle's gas system to your chosen set-up.

What are the benefits of an adjustable gas block?

Most factory AR-15s are "over-gassed." This means they send more gas than necessary into the system to ensure reliable cycling with a wide range of ammunition and in various conditions. An adjustable gas block allows you to fine-tune the gas flow to your rifle's gas-operated system. This helps in reducing recoil, improving cycling reliability with various ammunition types, and optimizing performance when using a suppressor.

Will this adjustable gas block work with my AR-15 caliber?

Yes, in most cases! The adjustable AR-15 gas block are designed to work with virtually any AR-15 compatible ammunition caliber, including but not limited to:

• 5.56x45mm NATO / .223 Remington
• .300 Blackout (.300 BLK)
• 7.62x39mm
• And many more!

What is the main factor for compatibility then, if it's not the caliber?

The most critical factor for compatibility is the gas block journal diameter of your barrel. This adjustable gas block for AR-15 is designed to fit barrels with a 0.750-inch gas block journal diameter. As long as your barrel has this specific diameter at the gas port location, our adjustable gas block will be compatible, regardless of the caliber your barrel is chambered in.

How do I know my barrel's gas block journal diameter?

You can typically find this information in your barrel's specifications from the manufacturer. If you don't have the specs, you can carefully measure the outside diameter of your barrel at the point where the gas block is located. The most common diameters are 0.625", 0.750", 0.875", and 0.936", with 0.750" being the most prevalent for standard AR-15 builds.

Why is the gas block journal diameter more important than the caliber for compatibility?

The gas block's primary function is to seal around the barrel's gas port to capture gas for cycling. The internal diameter of the gas block must precisely match the external diameter of the barrel at that specific point. The caliber of the bullet (which dictates the bore diameter) does not affect how the gas block physically attaches to the outside of the barrel.

Do I need to adjust the gas block for different calibers or ammunition types?

Yes, that's the primary benefit of an adjustable gas block! While the gas block itself is physically compatible based on the journal diameter, you will likely need to adjust (tune) the gas flow when switching between different calibers, different bullet weights within the same caliber (e.g., supersonic vs. subsonic .300 BLK), or when adding/removing a suppressor. This tuning ensures optimal reliability, reduced recoil, and minimized gas blowback.

Can I use this gas block if my barrel has a different gas block journal diameter?

No. Our adjustable gas blocks are specifically designed for a 0.750-inch gas block journal diameter. If your barrel has a 0.625", 0.875", 0.936", or any other diameter, you will need to purchase an adjustable gas block that matches your barrel's specific journal diameter. Using an incompatible size will result in a loose fit or inability to install the gas block correctly.

Is professional installation needed for the Strike Industries Collar Adjustable Gas Block?

No. The adjustable AR15 gas block can be installed simply by following the instructions and using the tools included in the package. You can also have it professionally installed by a licensed gunsmith.

What barrel sizes is the Collar Adjustable Gas Block compatible with?

This gas block is compatible with 0.75 inch gas block journals and AR-15 Mil-Spec barrels that feature a gas block stop.

How many preset settings does the CAGB have?

The Collar Adjustable Gas Block features 6 preset settings: 5 open settings for varying gas flow and 1 closed setting.

Can I adjust the gas block without any tools?

Yes, the primary feature of the Strike Industries Collar Adjustable Gas Block is its tool-less adjustment mechanism, allowing for quick and easy changes on the fly. The Gas Block can be easily adjusted by rotating the collar by hand. 

If the gas block is inside a handguard, a bullet or anything that can fit through the MLOK opening can be used to rotate the collar.

What materials is the Collar Adjustable Gas Block made from?

The Strike Industries Collar Adjustable Gas Block is made of steel and designed to withstand the heat and stresses of continuous firing, ensuring long-lasting reliability and performance.

Does installing this gas block require removing the muzzle device?

In most cases, yes. To properly install the clamp-on gas block, the muzzle device and potentially the front sight post (if present) will need to be removed to slide the gas block onto the barrel.

How does this gas block impact recoil and muzzle rise?

By allowing precise control over gas flow, the Collar Adjustable Gas Block can help reduce felt recoil and minimize muzzle rise by preventing over-gassing, leading to a smoother shooting experience.

Where can I purchase the Strike Industries Collar Adjustable Gas Block?

You can purchase the Strike Industries Collar Adjustable Gas Block and other quality firearms accessories from Atomic Defense, an authorized dealer for Strike Industries products. With Atomic Defense, you can be sure that you’re getting the genuine product and expert support.