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FX Maverick
FX Impact MK1
Once there is pressure inside the action the valve will remain closed
5mm valve bore
Umarex Zelos HP Brass Valve FX MaverickCustom brass valve designed for high airflow high power. Swapping this over from the factory valve will yield 40 50fps depending on caliber, tune, and projectile. On my personal . 25cal w 700mm barrel it is making 73ft lb using this valve along with porting the action barrel. These are cnc machined from brass rod 360 grade and made right here in USA. Specs 7. 5mm valve bore 4x 6. 5mm ports 8. 5mm poppet w stainless valve stem Lighter valve return
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