Holosun Paralow red dot, 50,000 hour battery life, 2 MOA dot, parallax free, with mount, w/free shipping with code BFDEAL16 at Optics Planet.
http://www.opticsplanet.com/holosun-paralow-hs403a-red-dot.html
http://www.opticsplanet.com/holosun-paralow-hs403a-red-dot.html