Bcm bolt upgrade/rebuild kit sopmod ar-15
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-Crane Ind O-ring (Mil-Spec)-Black extractor insert
Other Features: Extractor, extractor pin, extractor spring, usgi gas rings, o ring/extractor insert
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