Real Avid Master-Fit Free-Float Barrel Nut Wrench

The Real Avid Master-Fit Free-Float Barrel Nut Wrench is a purpose-built crowfoot tool designed for precise installation and torque application on AR-platform free-float barrel nuts. Constructed with a titanium-coated stainless finish, it provides tight tolerances to reduce marring and improve nut engagement. The Master-Fit series is specialized for common MIL-SPEC assembly nuts and is intended for armorer and gunsmith use. Its compact profile supports controlled torque application in workshop and maintenance settings.

Key Specifications

• The material is TITANIUM COATED STAINLESS STEL.
• The model is Master-Fit Wrench.
• The product type is Wrench.
• The size/fitment is Free Float Barrel Nut.
• The drive type is 1/2″ crowfoot.
• Designation as an AR-15 accessory: Yes.
• The overall dimension is 0.70 X 4.75 X 6.65.
• The length is 6.6500 inches.
• The width is 4.7500 inches.
• The height is 0.7000 inches.

Built for the workbench, the Master-Fit offers a specialty fit and durable finish that helps preserve parts while delivering repeatable results. It’s a compact, professional-grade tool for armorers and builders who value precise fitment and reliable torque control.