Best sub $100 red dot currently - SIG SAUER Romeo MSR 1x20 mm 2 MOA Dot Reflex Red Dot Sight

This is the best $100 red dot (except when later mentioned optics are also on sale) and I wouldn't go for anything cheaper except if theres a great sale on the Romeo 5 or a similar Vortex. I have slight astigmatism and have red and green dot versions of this optic and can confirm that the green is slightly better for me personally. My only cons for this optic is the warranty is only 5 years for the internal electronics but lifetime for the rest and theres no auto ON/OFF like the romeo 5. I would recommend the romeo 5 if you can find it for the same $100 (usually around holidays throughout the year).