Tapco Stock Wrench Red. This tool includes a mil-spec castle nut wrench a standard-length receiver extension removal wrench and an A1/A2 Flash suppressor wrench. Offering increased ergonomics each tool has a rubberized grip for both safety and comfort. Each tool is coated for corrosion resistance and includes a beverage opener. made in specialized factories from hardened steel and features a lifetime warranty. Specifications for Tapco Stock Wrench: Manufacturer: Tapco Color: Red Package Contents: Tapco Stock Wrench Tapco TAP22030: Stock Wrench Red