Great for protecting optic glass if you shoot a lot - GG&G Lens Covers for EOTech Holo Sights

Not a bad piece of equipment to protect your glass form damage. I recommend cutting it in half and tying to slide it in through both sides. It’s still a tight fit being cut in half and useful. It doesn’t worth we’ll with the magnifyer, if you run the magnifyer close to your optic. If you follow the instructions it says to take your EoTech optic apart which can void the warranty. If you don’t mind a voided warranty then follow the instructions.