AGV Anti-Scratch Helmet Shield for K3 , Color: Smoke KV3#C9N10N AGV # KV3C9N1001 Smoke Shield Fits: K3 / K4 ONLY Does not fit K3-SV helmets A.G.V. is an acronym that stands for Amisano Gino Valenza. A.G.V. is an acronym that stands for Amisano Gino Valenza.