FPS Reinforced push rod spring for second and third version gearboxes (MARSV2/V3)

Reinforced push rod spring for second and third version gearboxes (MARSV2/V3).

The material used is burnished and pre-hardened carbon steel wire with the addition of silicon and chrome EN10270 / 2.

Connecting eyelet with double thread combined to increase the contact surface with the hook of the’ pressure rod and reduce the possibility of cracks in the plastic.

Designed to effectively resist the pressure generated by fully charged midcap magazines, eliminando o riducendo drasticamente la “midcap syndrome”.

In the phase immediately following forming, the spring is stabilized in the oven at a temperature of 400 degrees centigrade for thirty minutes in order to optimize its duration over time.

All FPS springs are 100% Made in Italy.