So M140 is more than enough ?
Quote:
Originally Posted by Kos-Mos
G&G Sr-25 uses a V2.5, 17t piston (versus the standard 15) and longer mechbox/cylinder. uses a standard M4 hop-up unit.
Because of the extra air volume and long barrel, you don't need a strong spring for high FPS.
Again, 100% useless to install a M150 unless you short-stroke your gun, which is VERY pointless in that king of gun.
You are better use the softest spring that brings you to your field FPS without going over. Less stress on everything, less noise and more battery life.
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