Product Description The AGMA ANVIS ground mount adapter is for fixing the angle difference from flight helmets to ground helmets and is the lowest profile of any ground mount adapter made to date, overcoming the common problem of placing the ANVIS goggles too far from the eye. There are different variations of the AGMA because not all helmets have the same curvature. This ground mound adapter includes the USGI Rhino mount back plate and ANVIS Mount viewer. AGMA Sizes: Size 2 is for adapting to the Team Wendy, ACH, or MICH helmets Size 3 is for adapting to the Ops-Core or Crye ...