If you’re looking to shoot suppressed or just fine tune your AR to your preferred ammo, the CMMG ZEROED Adjustable Gas Block gives you the freedom to dial in the gas system exactly to your liking.

A 20-position detent adjustment screw means you don't have so much gas that your gun beats itself up and you don't end up with too little gas to even cycle. The sacrificial cleanout chamber and user-serviceable design provides excess carbon a place to go where you can still clean it out.

Gas blocks include a 6" 3/32 hex wrench to adjust gas settings and roll pin.

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These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.