Product description
Bore-Up M4-A1 / RIS / SR16 / M733 Kit
The Bore-Up kit allows you to squeeze out an additional 10-20 fps. The advantage of such a kit is that it does not wear down the other Gearbox elements and the battery. For the kit to work efficiently, it is recommended to use S120 springs or stronger.
Zestaw zawiera:
- Cylinder with widened diameter
- A sealed, ventilated and ball bearing piston head with an widened diameter
- A sealed nozzle for the Bore Up kit
- Aluminum cylinder head with double sealed and widened diameter
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