I've got an EOTech XPS2 that, although it'd be overkill, I am thinking about throwing on one of my airsoft rifles. Should I be worried about incurring any damage to the front lens from a BB strike? Airsoft BB's are made of plastic and are shot between roughly 400-500 FPS using a .20g BB. One of the airsoft sites I frequent sells lens protectors, but I'm not sure if they're meant for legit EOTechs or cheaply made knockoffs. Are they really needed? Thoughts?
EOTech Lens Protector
EOTech Lens Protector