Rival Arms Glock Slide Completion Kit - For Glock 9MM Gen3/Gen4 - Black Finish - Kit Includes Striker (Firing Pin) Spring - Extractor - Striker (Firing Pin) Safety Spring - Back Cover Plate - Extractor Depressor Plunger - RA Precision Striker (Firing Pin) - Striker (Firing Pin) Spacer Sleeve - Depressor Plunger Spring - Striker (Firing Pin) Safety - Spring Loaded Bearing - Striker (Firing Pin) Spr