KWA km4 2GX downgrade spring for 350 fps

[brandon toner]

hey guys, just put an order in for this gun.

I am looking into buying another spring to switch between my current stock spring (m120 i believe) and one to put me at just under 350 fps for CQB and the stock for field use.

Shoots around 400 fps with the stock spring what spring would you suggest for 350 fps?

[snoopy]

The newer shipment of Guarder sp100 springs put out about 340 fps according to the guys from Sacramento airsoft extreme.

[snoopy]

*double post* stupid android phone ! Rather....user error.

[brandon toner]

ok sweet.

thanks for the help.

[BlacksunshineGAAS]

M100.

[league 4]

As said, M100. A Guarder SP100 might put you over 350 with good compression though, as my SP110 was giving me 399FPS.

[snoopy]

As said, M100. A Guarder SP100 might put you over 350 with good compression though, as my SP110 was giving me 399FPS.

The older Guarder sp100 springs used to chronic up to 370-80 fps. I was getting upwards to 415 fps with the Guarder sp110 springs and up to 440 with the Guarder sp120 springs when installed in a Marui m4/an (with Marui compression parts).

The guys from the local airsoft extreme told me that the Guarder sp100 springs they got in was chronoing in the neighborhood of 340 fps with .20g bbs.

The older Guarder sp90 springs chronoed up to 330 fps with .20g bbs.

A systema m80 spring is capable of producing up to 310 fps with .20g bbs in a Marui m4.