


The ADC competition gas block for AR-15 is a low-profile gas block designed for barrels with a standard diameter of .750". It features a clamp-on locking system with high-resistance Torx screws and can be used with handguards that have a minimum internal diameter of 35mm. Typically designed for sporting activities, it has been lightened by side windows.
The peculiarity of this gas block is the presence of a double screw system: one screw allows for the adjustment of the gas from the outside, and another screw is used to lock the calibration.
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