The Photon is the only Sightmark product I would ever consider purchasing. Everything else is of dubious reliablity. If you want a budget micro red dot look at the Burris Fast Fire or one of the Vortex offerings. If you don't mind the weight the Bushnell TRS25 is a decent budget offering, as are Holosun and Primary Arms. Bear in mind I would not trust my life to any of those.
Texas A&M Class of 2011