Doublestar Corp. Bolt Rebuild Kit – AR-15/M16

The Doublestar Corp. Bolt Rebuild Kit provides the essential components needed to restore a worn or damaged AR-15/M16 bolt carrier group to proper function. This kit includes replacement parts that typically wear out first—extractor, ejector, and springs—allowing you to rebuild your bolt without replacing the entire carrier group. Essential for maintaining reliable extraction and ejection, particularly in high-round-count rifles.

All parts are manufactured to mil-spec dimensions and feature durable finishes for extended service life. Installation requires basic armorer knowledge and standard AR-15 tools. A smart addition to any maintenance kit for shooters who keep spare parts on hand or prefer to perform their own repairs.

• Part Type: Bolt Rebuild Kit
• Compatible Firearms: AR-15, M16, M4
• Includes: Extractor, Ejector, Springs, and Related Hardware
• Installation: Requires Basic Armorer Skills
• Use: Bolt Carrier Group Maintenance and Repair