We've had a few questions about the specifics of the 8IGHT-T 3.0 Spring Rates, so we created a spring chart for all 8IGHT 16mm Spring, including those for the 8IGHT 3.0 and 8IGHT-E 3.0. The chart includes the rate (lb/in), color, part number, and overall length in MM.
Hope this helps!