How are you going to get 450fps with an m120 spring?
the3rdeye88 · Registered Joined Jul 12, 2011 · 744 Posts #4 · Jul 30, 2012 View full thread How are you going to get 450fps with an m120 spring?
the3rdeye88 · Registered Joined Jul 12, 2011 · 744 Posts #8 · Aug 1, 2012 View full thread I'm running a Guarder sp140 and I average 455 FPS with .20.
