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Yankee Hill Machine (YHM-9378) Specter Gas Block
The design of this gas block allows the user to mount forearms that extend beyond the standard gas return system. Providing the inside diameter of the forearm is 1-5/8” or greater. It allows the mounting of our forearms without the removal of your pinned or welded muzzle accessory. This gas block consists of a simple, durable, two-piece design that is mounted by the use of four socket head cap screws using a 7/64" Allen wrench. Made from high quality steel and finished with a Mil. Spec. phosphate coating.