CMMG Mk10 10mm AUTO RDB Bolt Maintenance Spare Pa

CMMG Mk10 10mm AUTO RDB Bolt Maintenance Spare Parts Kit Replacement parts for Mk10 (10mm) Bolt CMMG10AFF9D Kit Includes: - Mk10 (10mm) Extractor - Extractor Spring - CMMG55BA424 - Extractor retaining pin - CMMG55BA431 - Extractor Rubber Buffer - CMMG55BA4C8 - Ejector Retention 1/16" x 1/2" Roll Pin Mk3 / Mk10 - CMMG38BA4F0 - Ejector Mk10 (10mm) - CMMG55BA47A - Ejector spring - CMMG10BA455 - Bolt Alignment Spring - CMMG45BA48A **Image may not show correct caliber, but parts in the kit are for 10mm** **All Parts Meet or Exceed Mil-Spec**