Available only in the Large 3 finger and Small 3 finger (Mini Evolution 20) models

The Evolution 20 is the next "Evolution" in the resistance activated releases. The Evolution 20 no longer requires a spring change like the "plus" models with the ITS system.
One spring under a screw is the only adjustment needed with a weight range from 8 pounds all the way up to 24 pounds of holding weight.
This system also has the advantage of a much more precise micro adjustment of weight, as well as improved consistency.

Download the instruction for the Evolution: