British MTP Virtus Helmet Cover - NVG and Rail CutoutsMTP on the brain and NVG in the bank? New helmet cover time. MTP (Multi Terrain Pattern) is a camouflage pattern designed to be effective in a variety of environments. These Virtus covers have, like the title says, night vision and rail cutouts to accommodate your techno equipment (obviously they would look much more radical and appropriate on the correct helmet but we do what we can) and Source Mandible, that I'm sure everyone wears. Very high speed,