Poseidon M100 ECO Spring

Brand of Poseidon has appeared on the market
with an assortment of tuning parts with a quality of finish rarely seen so far.
The selection of materials used by Poseidon during the production process is
based solely on high class components. Furthermore, the company goes
above and beyond known and tested schemes when it comes to creating parts in
classic configurations and of outdated construction in favor of improved
performance by implementing innovative solutions.

M100 main spring with irregular pitch
intended for electric replicas was made of steel. The implementation of M100
spring should provide a muzzle velocity of ~320 FPS depending on materials
used.