Master Grade Ar15 Crowfoot Armorer'S Wrench. Master-Fit 1/2 Crowfoot Wrenches Are Purpose Built And Specialized For Precise Fitment To Minimize Marring On Gun Parts. Constructed Of Titanium Coated Stainless Steel, Delivering The Highest Level Of Precision To Confidently Apply Torque To Ar Platform Crowfoot Wrench For Pistol Buffer Tube Castle Nuts. The Thin Castle Nut Wrench Is Designed To Work With Most Pistol Buffer Tubes And Pistol Braces. Designed Specifically For Gun Nuts. Now You Can Say IVe Got A Wrench For That! No More Rigging And Adapting Generic Wrenches To Complete Your Builds. TheMaster-FitThin Castle Nut WrenchIs Purpose Built And Specialized For PreciseFitment To Confidently Deliver Torque ToCastle Nuts On Pistol Buffer Tubes. Titanium Coated Stainless Steel Construction Provides Tight Tolerances For Solid Nut-Gripping Strength And Enhanced No-Slip Tool Control. When Paired With TheMaster-Fit1/2 Drive Torque Wrench, ThisMasterGrade Combo Will Take Your Gun Building Experience To A Whole New Level. TheMaster-Fit1/2 Drive Crowfoot Wrenches Also Work With Any Standard 1/2 Drive Wrench. Specifications for Real Avid Master Fit Thin Castle Nut Wrench: Manufacturer: Real Avid Color: Stainless Finish: Titanium Fabric/Material: Stainless Steel Gun Model: AR-15 Condition: New Features of Real Avid Master Fit Thin Castle Nut Wrench Specialized Precise-Fitment ArmorerS Crowfoot Wrench Fits 1/2 Receiver Torque Wrench Head Purposefully Designed To Fit Castle Nuts On Pistol Buffer Tubes Where Compact Build DoesnT Allow For A Standard Wrench Head Titanium Coated Stainless Steel To Confidently Apply Desired Torque While Minimizing Marring On Gun Parts Tight Tolerances For Solid Grip And No-Slip Tool Control Package Contents: Real Avid Master Fit Thin Castle Nut Wrench