Great do all optic - SIG SAUER Romeo4DR 1X20mm Compact Red Dot Sight

Bought this to upgrade from the 6 year old Vortex Sparc on my home defense carbine. The Sig Romeo 4 has the clearest glass and sharpest dot of any red dot I have used including multiple Vortex and Bushnell models. There is zero color difference looking through the lense. Most my red dot have a green field of view due to the coatings. The motion activated on/off is what really attracted me to this optic. For home defense no more fumbling with button or dials in the dark and never a dead battery from leaving it on after the range. I also like the exterior styling and the graphite grey color, very sharp looking. The only Negative I would say is that the mount is a little flimsy with the single cross bolt. However contrary to some bad Internet Info it does fit standard Aimpoint T-1/T-2 mounts. That is also why this version is over a hundred dollars cheaper than other Romeo 4 models because it comes with the basic mount so you can upgrade if you like.