Made of steel, the non-linear coiled mainspring prevents breakage and reduces the clumping effect. This prolongs its useful life and the time for which it retains its presumed technical parameters.The mainspring is made of steel.
The mainspring is designed for tuning electric replicas. The power obtained by mounting the spring depends on the tightness of the system, the type of cylinder used and the length of the barrel and its diameter.Technical data
. Material: steel
Color: Black
Weight: 30 g
Manufacturer: Prometheus.
