Wilcox L3 G12 3 Hole MICH Shroud 28300G12B w/Breakaway NVG Mount 28300G01. This item may restricted by one or more US export laws (ITAR/EAR). 28300G12B L3 G12 Three-Hole MICH Helmet Bracket. 28300G01 L4 G01 Breakaway Arm NVG Mount. The Wilcox L3 G12 NVG Mounting System for One and Three Hole Helmet Configurations with NVG Lanyard and Universal NVG Mount allows firm attachment of an NVG to a MICH-ACH helmet drilled with the standard one- and three-hole patterns. This NVG Mounting System is unique in that it provides three modes of operation. The first mode allows the Mount to ...