DLP Tactical ANVIS AN/AVS-6 AN/AVS-9 CNC Machined Ground Helmet Mount Adapter. Converts ANVIS aviation helmet mount for use with standard ground helmet NVG shrouds. CNC Machined T-6061 Aerospace Aluminum Alloy construction. Fits most standard NVG helmet shrouds and Rhino Mounts. Includes angle adapter and quick release universal mount plate (mount specific hardware not included, please check with your ANVIS mount owner's manual for correct screw size for your specific mount). Quick release universal mount plate offers secondary height adjustment in addition to height adjustment ...