Spring RCS Top Max

The central stabilization narrowing allows the spring to maintain a more linear and rectilinear position inside the air unit, minimizing lateral displacements and maximizing the life span of the spring, moreover the constant performance of the RCS spring allows to obtain a firmer shot. The RCS springs specific to TopMax Elaborazioni are individually tested during production to guarantee punctually the value expressed in m / s.

Modify Molla S110 +

PIRANI SPRING BASIC 100

Molle made in Italy, con superficie di appoggio rettificata ed autocentrante, colorazione identificativa forza molla. Trattamento anticorrosione, molla a passo variabile Costruita con acciaio pretemprato. Le molle sono state testate su VFC M4 modiifcato con due cuscinetti, corsa normale, canna da 270mm, hop up scarico e pallini da 0,20gr dando i valori espressi dalla molla

PIRANI SPRING TOP 115

Springs made in Italy, with rectified and self-centering support surface, identifying spring force color. Anti-corrosion treatment, spring with variable pitch. Built with pre-hardened steel. The springs have been tested on VFC M4 modified with two bearings, normal stroke, 270mm barrel, hop up and 0.20gr pellets, giving the values expressed by the spring

MS120 Non-Linear Spring Prometheus

PIRANI SPRING TOP 90

Molle made in Italy, con superficie di appoggio rettificata ed autocentrante, colorazione identificativa forza molla. Trattamento anticorrosione, molla a passo variabile. Costruita con acciaio pretemprato. Le molle sono state testate su VFC M4 modiifcato con due cuscinetti, corsa normale, canna da 270mm, hop up scarico e pallini da 0,20gr, dando i valori espressi dalla molla

Born from the collaboration with a company for 30 years leader in the D100 spring it is made of steel industry Pre-hardened variable pitch.

The abbreviation stands 100 the speed in m / s reached by bullets from 0,20gr.

Modify Molla S100 +

PIRANI SPRING BASIC 105

Springs made in Italy, with rectified and self-centering support surface, identifying spring force color. Anti-corrosion treatment, variable pitch spring Made of pre-hardened steel. The springs have been tested on VFC M4 modified with two bearings, normal stroke, 270mm barrel, hop up and 0.20gr pellets giving the values expressed by the spring

VFC Molla M90 M90 spring vega force company

PIRANI SPRING BASIC 115

Molle made in Italy, con superficie di appoggio rettificata ed autocentrante, colorazione identificativa forza molla. Trattamento anticorrosione, molla a passo variabile Costruita con acciaio pretemprato. Le molle sono state testate su VFC M4 modiifcato con due cuscinetti, corsa normale, canna da 270mm, hop up scarico e pallini da 0,20gr dando i valori espressi dalla molla

Spring RCS Top Max

The central stabilization narrowing allows the spring to maintain a more linear and rectilinear position inside the air unit, minimizing lateral displacements and maximizing the life span of the spring, moreover the constant performance of the RCS spring allows to obtain a firmer shot. The RCS springs specific to TopMax Elaborazioni are individually tested during production to guarantee punctually the value expressed in m / s.

The 100 m / s FPS spring has been calibrated on 363 mm barrels and gearbox with type D cylinder (for pipes from 301 to 400 mm).

90 m/s FPS spring has been calibrated on 363 mm inner barrel and gearbox with type D cylinder (for barrels from 301 to 400 mm).
Of course with shorter or longer barrel the performance will decrease or increase, therefore the calibration will be harder or softer.
In the calibration process has not been taken in consideration the thickness due to the bearings of the spring guide and of the piston head.
So starting by equal initial conditions you have to take into account of a performance increase of about 2.5 m/s for each bearing.
The FPS spring is 100% Made in Italy and it is produced in collaboration with leading companies in the sector.

MS90 Non-Linear Spring Prometheus