ZRTS has engineered an upgraded, extended firing pin for all Sphinx SDP pistols. This pin is swiss turned from 17-4 Stainless and is longer and more durable than the factory unit.
This pin, when used in conjunction with our spring kit, allows for complete reliability while reducing trigger pull weight. The lengthened pin ensures positive ignition of even hard primers when using a reduced power firing pin spring. RETAINS FACTORY FIRING PIN SAFETY!