Pro Tips: The barrel nut that comes with this handguard is designed to be installed with a standard cressant wrench. However we do offer a crows foot wrench to verify torque specifications. when tightening the barrel nut, you will want to align the screw holes to the 12, 3, 6, and 9 O’clock positions to allow the handguard to be oriented correctly. when installing this handguard, please lock the upper into a bench vise with a proper Upper Receiver Vise block, like the dual use Vise block that we offer. DO NOT lock the handguard in a vise. It is sad that we have to actually make this statement.
Anthony –