I have more than a few Viridian greendots in the RMSc footprint and the RMR footprint. I think they are very good quality for their price and the quality of the actual dot is very crisp. The Defender CCW is also particularly good - especially if you get the new version that shuts off after 10 minutes of no use rather than 14 hours for Version 1. The new C+H red dot with RMSC footprint is likewise pretty good. And the Meprolight series of enclosed and open emitter red dots are also very good and are supposed to be coming out with green dots soon.
