After your completed purchase of over $375/$475 at www.ritonoptics.com, a code to redeem your free products will be sent via email. Your promotional coupon code is valid for a free Riton Mod-3 RMD (micro dot) and set of rings (max $49.99 value), if applicable. This offer begins 11.24.17 @ 12:00am EST and ends 11.24.17 @ 11:59pm EST. While Supplies Last. Online-only offer. Only valid for in-stock merchandise. Promotional coupon code must be redeemed no later than 11.29.17. Not valid with any other discount offers.