what is a striker fired operating system in a  handgun?
(Rifle shooters will recognize this as âcock on closingâ, as opposed to a hammer-fired pistol which is âcock on openingâ.) What that means is that the striker fired gun is cocked only by the power of the recoil spring, which is working against the hammer spring. Put your hands together and push; your right hand is the striker spring, which has to be tensioned to fire, while your left hand is the recoil spring, which is tensioning that striker.