Based on the SOPMOD designed bolt upgrade and rebuild package, this kit is designed to breathe new life into your bolt assembly. The bolt assembly is the heart of your AR-15 rifle system and preventative maintenance used by professions insures these systems keep running even under the harshest of conditions.

This is a great spare parts kit to keep your AR-15, M16, M4 running in the field.

Manufacturer Number: BCM-SOPMOD-BOLT-KIT

Includes:
Extractor made to USGI specs (shot peened)
Extractor pin
BCM Extractor Spring (chrome silicon, heat treated & stress relieved, shot peened)
3 USGI Gas Rings
Mil-Spec Crane Ind O-Ring
Black Extractor Insert