Still have no idea to protect your RS Eotech G33? 
HAO's give you the answer of it, HAO's Eotech G33 Lens Protector are precisely lathed from a alloy 6061 tube and a PC unbreakable PC len and no need to modification, just screw on your G33 inner tube.then your G33 is fearless to face your enemy!

HAO's Eotech G33 Lens Protector

Color: Graphic black

Term Of Use:
All the products are made and design for Airsoft use. Any modification of structure, exterior, appearance or painting, marking or wiping the cover/instruction on the merchandise may lead to violate your nation's law regulation. Customers shall bear the full legal liability after the modification.