I have a spare EOTech 3X Magnifier Flip to Side mount in like new condition. It came off of a 3X magnifier but it may work for the 4X but I couldn't tell you for sure. It has minor rub mounts from having the magnifier mounted. I'm asking $75 for it.
I accept USPS Money Orders and I do not take PAYPAL. ARFCOM IM or email are best. More pictures available on request.