Maintaining optimal compression and consistent feeding in an optic-ready gas blowback pistol requires precise tolerances, especially when running high-pressure green gas or CO2. This factory original replacement set is engineered to completely restore the factory-spec seal and cycle rate of your Umarex VFC Glock MOS series sidearm. By eliminating the FPS drops and feeding issues associated with worn loading nozzles, this drop-in kit keeps your tactical training pistol running flawlessly during harsh skirmishes. The high-impact reinforced polymer construction aggressively resists cold-shock cracking and withstands continuous high-velocity impacts against the hop-up chamber. Inside, the optimized cylinder geometry maximizes gas expansion and seal efficiency to deliver a snappy cycle and highly consistent muzzle velocity. Tailored specifically for VFC-manufactured Glock MOS platforms like the Glock 17 Gen 5 and Glock 45, the package includes the loading nozzle and internal flute valve components mapping exactly to factory parts 01-06, 01-07, and 01-08.
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