I already have a GoPro 4, but if you go to GoPro.com and apply coupon "CSWRCN4H3", you'll get 40% off. Code also works on select mounts and accessories that says "40% OFF SELECT PRODUCTS". Code works for me as of the time of this post, but totally unsure if GoPro will be fulfilling the orders. So YMMV. Good luck! Update: Looks like Hero 4 Black is out of stock at the time of this update. Update 2: Guess it's not working anymore!