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| Originally Posted by Deacon Hi Jaron, could you expound on the importance and difference of the above choices? Thank you. |
Different springs have different tensions. This determines how hard the hammer is driven forward and how long it keeps the valve open. Generally stiffer springs keep the valve open longer and release more air which accelerates the ball faster leading to higher muzzle velocities ( and vice versa. )
An RVA uses a screw to adjust the length of a single spring which of course changes the tension. For those that either don't want or can't get an RVA, a spring kit includes multiple springs, all of which have different strengths, which can be swapped out.