[ Tactical Safety Essentials ] Optic Lens Sight Protector 4mm Thick Acrylic Shield TACTICAL SAFETY ESSENTIALS - USED TO PROTECT YOUR SCOPE/RED DOT LENS FROM DAMAGE TACTICAL SAFETY ESSENTIALS - INCLUDES: TWO 4MM THICK INTERCHANGEABLE ACRYLIC SHIELDS TACTICAL SAFETY ESSENTIALS - FITS ALL STANDARD PICATINNY 1913/WEAVER RAILS ***Any purchase from third-party sellers is considered to be counterfeit and NOT covered by TACTICAL SAFETY ESSENTIALS ***