Luth-AR AR-15 Flat Wrench Features The Luth-AR AR-15 Flat Wrench is machined from A36 quarter-inch plate steel and finished with a manganese phosphate coating for corrosion resistance and long-term durability on the workbench. Its flat AR-shaped profile packs an impressive range of functions into a single tool including an A2 buffer tube wrench a barrel nut wrench a flash hider wrench and a castle nut and lock ring wrench. Even a bottle opener and A2 butt stock screwdriver are built into the design adding genuine everyday utility beyond the workbench. At 15.1875 long and just 0.257 thick the wrench is compact enough to store easily in a range bag or toolbox. Weighing 1.29 lbs the wrench provides enough leverage for stubborn barrel nuts and castle nuts without excessive bulk. Its 1/2 drive torque interface allows use with a standard torque wrench for properly torquing critical fasteners like the barrel nut to spec. This combination of durability versatility and compact design makes it a valuable addition to any armorer s bench or gunsmithing toolkit. For AR-15 builders and hobbyist gunsmiths who want one dependable tool that handles most common maintenance and assembly tasks the Luth-AR Flat Wrench delivers real practical value. Luth-AR Flat Wrench Specifications Brand: Luth-AR Model: Flat Wrench Compatible Hosts: AR-15 Color: Black Material: Steel Finish: Manganese Phosphate Length: 15.1875 Width: 3.625 Thickness: 0.257 Weight: 1.29 lbs Available At: GrabAGun