A.P.S. (Hakkotsu) APM50 M40A3 6mm Rechargeable Cartridge (450FPS)
This 6mm Rechargeable Cartridge is designed for APS APM50 Sniper Rifle use.
The design of this cartridge has patent.
The gas won't leak by accidental drop.
It is relatively safe compare to similar cartridge system found in the market.
No Spring is used inside the cartridge, all the power and pressure are done by O-Ring and valve only.
Maintenance is easy and simple.
Include 6 pieces