This Armorer's Wrenches from Midwest Industries didn't leave anything out. Looking for an AR 15 wrench? Looking for an AR10 armorer's wrench? This AR Professional Armorer's Wrench will handle either platform with ease. The AR torque wrench specs are printed right on the handle for quick reference, taking out any guesswork. This 4140 heat-treated steel AR wrench works with encapsulated and pin-style barrel nuts (including GI-style). They even threw in a combat-grade bottle opener. No armorer's kit is complete without this tool, get one today! Specifications for Midwest Industries AR Professional Armorer's Wrench: Manufacturer: Midwest Industries Fabric/Material: 4140 Steel Color: Black Finish: Heat Treated Condition: New Projectile Caliber: .308 Caliber Gun Type: Semi-Automatic Rifle Gun Make: AR Platform Country of Origin: USA Diameter: 0.75 in Features of Midwest Industries AR Professional Armorer's Wrench: Designed to work with 5.56 and 7.62 AR platform rifles components Works with encapsulated and pin style barrel nuts including the GI style nut Drive end for all MI free float barrel nuts (Compatible with other popular brands like BCM) 3/4 inch wrench for A2 muzzle devices and designed to work with the thin flats on many of the popular suppressor mounts Castle nut driver with 3 notch engagement Combat bottle opener Small hammer head Torque specs features on wrench handle Constructed from 4140 heat treated steel Package Contents: Midwest Industries AR Professional Armorer's Wrench