Try searching using this link: http://www.amazon.com/b/?ie=UTF8&node=10340204011&ref_=pe_1534260_126890110

Here is a link to the set I ordered: http://www.amazon.com/Trijicon-GL101O-Glock-HD-Night/dp/B0048KECZM/ref=sr_1_1?s=sporting-goods&ie=UTF8&qid=1415717169&sr=1-1&keywords=trijicon+HD

I received this email yesterday at 6:29p.m.

"The Amazon Sports team thanks you for your recent Hunting and Fishing purchase. It is our pleasure to let you know that your order entitles you to a $20 promotional credit. This credit can be used toward the purchase of items shipped and sold by Amazon.com (excludes products sold by 3rd party merchants) until 12/31/2015 (certain exclusions apply)."