Opticsplanet sent out a newsletter with a $40 coupon off select night vision. "nv40off" It doesnt even work. i was shopping for a holosight for my AR and still had the coupon in the cart, and it worked for that. Putting different eotech holosight models and it worked for all of the them. so i think it works for eotech red dots. get some savings before they catch it!