Real Avid Master Fit Free-Float Barrel Nut Wrench for AR15. 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 20-Hole And 4-Hole Free-Float Barrel Nuts. 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-FitFree-Float Barrel Nut WrenchIs Purpose Built And Specialized For PreciseFitment To Confidently Deliver Torque ToBoth 20-Hole And 4-Hole Free-Float BarrelNuts. 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 Free-Float Barrel Nut Wrench: Manufacturer: Real Avid Fabric/Material: Stainless Steel Color: Stainless Finish: Titanium Gun Model: AR-15 Condition: New Features of Real Avid Master Fit Free-Float Barrel Nut Wrench Specialized Precise-Fitment ArmorerS Crowfoot Wrench Fits 1/2 Receiver Torque Wrench Head - Purposefully Designed 2-Sided To Fit Both 20-Hole And 4-Hole Free-Float Barrel Nuts 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 Free-Float Barrel Nut Wrench What firearm models does the manufacturer say Real Avid Master Fit Free-Float Barrel Nut Wrench is compatible with? The manufacturer says that Real Avid Master Fit Free-Float Barrel Nut Wrench is compatible with AR-15Real Avid AVMFFFBNW: Master Fit Free-Float Barrel Nut Wrench for AR15