Real Avid Master Fit Castle Nut Wrench – AR-15/AR-10 Armorer's Tool

The Real Avid Master Fit Castle Nut Wrench is an armorer's tool designed for precise installation and removal of AR-15 and AR-10 castle nuts and receiver extension nuts.

• Compatibility: AR-15 and AR-10 castle nuts and receiver extensions
• Construction: Hardened steel with protective coating
• Torque Wrench Compatible: 1/2-inch drive hole
• Design: Indexed teeth for no-slip engagement
• Use: Installation, removal, and proper torquing of castle nuts