A great slide is the foundation of your build, that's why Rival Arms'Slide Completion Kit uses high quality components designed to provide accuracy and consistency. The slide completion kit includes every part needed to assemble the internal workings of your slide all designed to work together. It features a PVD coating on select parts, CNC-machined from solid stainless steel billet on select parts, and no gunsmith required. IncludesStriker (firing pin) springExtractorStriker (firing pin) safety spring and safetyBack cover plateExtractor depressor plungerRA precision striker (firing pin)Striker (firing pin) spacer sleeveDepressor plunger springSpring loaded bearingStriker (firing pin) spring cupsSlide channel liner