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FPS rating of G&P stock spring?

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Depends if it's an Asian Model or a Evike US model.


Barrel length will also cause it to fluctuate a bit.


So, with that...the Asian Model with the Black Spring is a M120.


In the US model, I have seen a oil tempered "brownish" spring give about M110 Speed in performance. This spring came out of a budget line box with the plastic bushings.

Edited by Guges Mk3

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