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Designed to work with the latest generation receiver extension nut, Tapcos Enhanced AR-15/M4 Stock Wrench contacts the ?castle nut? securely in three notches to ensure a smooth and uniform installation. This tool also provides a boxed end wrench for removing the fixed stock receiver extension found on full size rifles. Manufactured from steel with a soft rubber handle, this tool will provide you with years of use.

Specifications:

- Type: Multi-Tool
- Material: Steel
- Color: Black