AR-15 Gas Tubes – Quality CMC Options for Reliable Performance
Choosing the correct gas tube for your AR-15 is critical to ensuring consistent cycling and optimal reliability. At Ally Munitions, we offer precision-engineered CMC Gas Tubes, crafted to exact specifications for superior fit and function across all common AR-15 gas systems.
How to Identify Your Gas System Length
The length of your gas system dictates which gas tube you need. Most barrel manufacturers clearly specify the gas system length (pistol, carbine, mid, rifle, etc.) in their product specs. You can also measure from the centerline of your gas blockback toward the chamber or barrel extension to determine the correct gas system length.
We are currently working on a comprehensive master list covering all gas tube lengths, gas system lengths, and typical barrel lengths to help you make the best choice. Stay tuned for that detailed guide!
Why Choose CMC Gas Tubes?
CMC Triggers is a trusted name in AR components, and their gas tubes reflect the same high standards of quality and reliability. Using a CMC gas tube matched with your CMC bolt carrier group can improve gas efficiency and overall system performance.
Key Features:
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Made from corrosion-resistant stainless steel for durability
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Precisely manufactured to meet exact AR gas system standards
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Includes the gas tube roll pin required for installation
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Requires a 3/32” roll pin punch for proper installation
Installation & Maintenance Tips
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Before installing your new gas tube, always inspect the gas block and gas tube for obstructions or debris that can hinder gas flow.
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Regularly check the gas port on your barrel for carbon buildup or blockages, as this can affect gas delivery and end up clogging the gas tube.
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We recommend cleaning your gas block and gas tube at least annually to prevent carbon buildup, which reduces internal diameter and gas flow, potentially causing cycling issues.
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Use a 3/32” roll pin punch to secure the gas tube roll pin properly into your gas block.
Upgrade your AR-15 with Ally Munitions’ premium CMC gas tubes for precision fit, durability, and dependable cycling every time.
