Sourced directly from Tokyo Marui, the AKM Bolt Cylinder (Part # MGG9-111) is an authentic OEM replacement designed to recover optimal cyclic speed and compression inside your GBB engine. Extended auto-fire sessions and sudden thermal drops place heavy strain on the original housing, which can lead to micro-fractures, air leaks, or sluggish reset over time. Injection-molded from a temperature-stable, high-impact polymer compound, this component houses the loading nozzle and forms the core expansion chamber for the blowback action. Because it is manufactured to precise factory tolerances, it drops straight into Tokyo Marui AKM and AKX gas blowback bolt carriers, restoring tight pneumatic efficiency and crisp slide return without the filing or shimming often required by aftermarket alternatives. Each package contains one original factory cylinder.
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