FPS Airsoft Gearbox Variable Pitch For VSR-10 Bar-10 MB03

FPS Airsoft Gearbox Variable Pitch VSR MB03 Spring

The FPS Spring has been calibrated on the original mechanics of the Well brand MB03 rifle.

In the calibration process, the thickness due to the bearings was not taken into consideration, therefore, with the same initial conditions, an increase in performance of about 2.5 m / s for each bearing must be considered.

Of course, with shorter or longer barrels the performance will decrease or increase, so you will switch to the harder or softer calibration.

The FPS Spring is 100% Made in Italy and was made in collaboration with leading companies in the sector.

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

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

The spring has coils with variable pitch in the central area and in the one in contact with the spring guide and undergoes a grinding process at both ends which guarantees optimal performance in the compression phase.

M90 – Length 236mm – OD 10.4mm – ID 8.3mm

M100 – Length 236mm – OD 10.1mm – ID 8.0mm

M120 – Length 238mm – OD 10.0mm – ID 7.8mm

M140 – Length 240mm – OD 10.3mm – ID 7.8mm

Same Day Dispatch on All Orders Placed Before 3pm Monday – Friday

For Airsoft Use Only, cannot be Modified for any other Purpose

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