BCG Rebuild/Maintenance Kit for AR15 5.56/.223 Includes:

Firing Pin, chrome plated 
Firing Pin Retaining Pin

Cam Pin, Black Oxide

3 Gas Rings
Ejector, billet

Ejector Roll Pin

Ejector Spring

Extractor, Billet - Mag Phos, Shot Peened
Extractor Roll Pin

5 Coil Extractor Spring w/Plunger Insert

Extractor O-Ring

All Parts Made in the USA