VISM AR15 Crows Foot Barrel Tool Black. Specifications for VISM AR15 Crows Foot Barrel Tool: Manufacturer: VISM Size: One Size Weight: 8 oz Fabric/Material: Aluminum Features of VISM AR15 Crows Foot Barrel Tool 1/2" and 3/8" drive compatible for torquing your barrel nut to the proper torque specifications Polymer drift punch guide jig helps with guiding the included steel punch onto the roll pin Guide jig helps prevent the marring of the receiver finish Allows the gunsmith to have both hands free to focus on drifting the roll pin into place Package Contents: VISM AR15 Crows Foot Barrel Tool Blue polymer drift punch guide jig Steel machined punch VISM VTARCFBRL: AR15 Crows Foot Barrel Tool Black