Sprinco USA Recoil Reducers make a significant difference by the management of peak impact forces to the slide /frame interface. The graduated sub-spring is engineered and critically positioned in each model to ensure normal cycling and reliability. In most models, the spent case has already been ejected prior to slide deceleration. The reduced slide to frame impact results in reduced energy transfer to the grip, wrist, and other extremities ("less felt recoil"), as well as extending the duty cycle of your pistol. This is a proven effective no frills, no gimmick approach to recoil management.