4G is specifically designed to address the stringent requirements of special forces operators. Only 4G can offer ultra-fast Auto-Gating, the smallest halo and unrivalled spectral range from ultraviolet to near infrared. Gain the unfair advantage in the darkest nights, in all terrain and operations. Photonis "Onyx" white phosphor.

ECHO tubes may have a maximum of 2 spots in Zone 1, 2, or 3. 

Photonis 4G ECHO Tube - 11769 Green