This Stern Defense bolt replacement kit (brand part no. 004-9MMBOLTREPLACEMENTKIT-KK) is built for a 9mm-chambered AR-platform build, giving owners a direct way to replace a worn or damaged 9mm bolt without sourcing individual small parts separately. This rifle part is sold as a complete kit rather than loose components.

Key Specifications

• Sized for 9mm AR-platform bolts.
• Sold as a complete bolt replacement kit.
• Built for a 9mm AR-platform build.
• Lets you replace a worn or damaged 9mm bolt without sourcing individual small parts separately.

Frequently Asked Questions

Will this work in a standard 5.56 AR-15? No, this bolt is sized and dimensioned specifically for a 9mm-chambered AR-platform build, not a 5.56/.223 rifle.

Is this a full bolt carrier group? It’s sold as a bolt replacement kit; confirm the included components against your specific build’s needs before ordering.

Buy the Stern Defense 9mm Bolt Replacement Kit

Keeping a dedicated 9mm bolt on hand is cheap insurance against downtime if your current one wears out. Order this from a Lubbock, TX gun shop and our team will get your order processed right away.