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The CMMG Zeroed Adjustable Gas Block gives AR-15 builders a clean, toolless way to dial in reliable cycling across different ammunition loads and suppressor setups. Machined from 4140 steel with a corrosion-resistant nitride finish and sized for barrels with a .750" gas block journal, the Zeroed block offers 20 tunable positions so you can fine-tune your rifle's gas system without swapping springs or buffers.
The block is secured to the barrel with 17-4 stainless steel hardware for long-term durability under hard use. As part of CMMG's Zeroed accessories line, it is designed for straightforward installation on any AR-15 platform rifle running a .750" gas journal, making it an easy upgrade for builders dialing in a suppressed or variable-load setup.
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