CMMG Zeroed AR-15 Adjustable Gas Block – .750" Diameter

The CMMG Zeroed Adjustable Gas Block gives AR-15 shooters precise control over gas flow to tune their rifle for different ammunition loads, suppressors, or buffer weights. By restricting gas port pressure, this block reduces felt recoil, minimizes bolt carrier velocity, and helps eliminate over-gassing issues common when running suppressed. It's a practical upgrade for shooters who want to fine-tune reliability and reduce wear on internal components.

Machined from steel with a low-profile design that fits under most free-float handguards, the Zeroed gas block uses a simple set screw adjustment system accessible from the front. Installation requires removal of the existing gas block and is straightforward for anyone familiar with AR-15 assembly, though proper alignment with the gas tube is critical. The block includes a hardened steel set screw and requires a .750" diameter barrel journal.

• Part Type: Adjustable Gas Block
• Compatible Firearms: AR-15 with .750" diameter barrel
• Material: Steel
• Finish: Black
• Installation: Requires barrel disassembly; basic armorer skills recommended
• Includes: Gas block, set screws, adjustment screw