Dbst Bolt Carrier Rebuild Kit

Doublestar Corp. Bolt Carrier Rebuild Kit, Contains (1) Extractor, (1) Extractor Spring With Bumper Pad, (1) Set of 3 Gas Rings, (1) O-Ring, (1) Extractor Pin, (1) Firing Pin, (1) Firing Pin Retaining Pin, (1) Gas Key, (2) Gas Key Screws AR789