Thread: Hop-Up Advice
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Old April 4th, 2012, 13:30   #2
XZIVR's Avatar
Join Date: Mar 2011
Location: Calgary, AB
Did you search at all? I searched when i was curious and found that the hardness needs to be matched to the fps of the gun. Lower the number the softer. Go soft for low fps and harder for high fps. Different manufacturers have different recommendations about what the fps range should be for a given hardness.
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