The gear box is modified from the JM Gen.8 gear box. It consists of JM Gen.8 gears, pull bridge, enhanced tappet, piston, piston head, improved O-ring with enhanced air impermeability, stainless steel full-gas cylinder, six 6mm bearings, 460 motor silver wire line sets (welded). .The gearbox housing is made of fiberglass, which is stronger and more durable.
.Note: The gear has been adjusted and the gear box is lubricated. .Suitable for p90 but will still need a certain amount of hands-on ability to complete the refit, if you are not confident with upgrades seek assistance.
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