The LBE AR-15 Bolt Refurbish Kit provides all essential components needed to rebuild and restore your AR-15 bolt carrier group to optimal performance. Made in the United States with rigorous quality control standards.LBE AR-15 Bolt Refurbishment KitIncludes Firing Pin for reliable ignitionCotter Pin for secure component retentionCam Pin for proper bolt operationThree (3) Bolt Gas Rings for optimal gas sealAmerican-manufactured components with strict quality controlPerfect for maintaining rebuilding or upgrading your AR-15 platform with trusted American-made parts designed for reliable performance across all applications.