Includes: Firing Pin Front Pivot Pin Rear Takedown Pin Firing Pin Retaining Pins x 3 Trigger/Hammer Pins x 2 Triggerguard Roll Pin Rear Sight Windage Knob Spring Pin Bolt Catch Roll Pin Ejector Roll Pin Extractor Pin Gas Tube Roll Pin Extractor Disconnector AR-15 Gas Rings x 3 Trigger Spring Hammer Spring Detent Selector Magazine Catch Spring Buffer Detent Spring x 2 Selector Spring / Ejector Spring x 2 Take Down Detent Spring x 2 Take Down Detents x 2 Front Sight Detent Spring Bolt Catch Spring Ejection Port Cover Spring Extractor Spring Assembly Disconnector Spring (Green in color)