Norotos 3-Hole Low Profile Shroud w/ Ratchet Strap TATM Arm NVG Mount 276016-1. This item may restricted by one or more US export laws (ITAR/EAR). Norotos 3-Hole Low Profile Shroud P/N 276016-1 Norotos Titanium Advanced Tactical Arm P/N 276080-1 You are looking at a Norotos Low Profile 3-Hole Shroud with Rachet Strap type mount with TATM Arm. This TATM Arm is the short arm model. It has the Dovetail NVG mount and should interface with PVS-15's and similar. This is the perfect mount for those with a helmet not drilled to the 3 hole pattern standard or even to use on a bump style ...