I'm trying to decide on a good optic for my M1A Scout Squad. I've currently narrowed it down to the Vortex Crossfire II red dot sight and the Holosun HS510 C. While I'm intrigued by the Holosun's solar charging ability, I'm curious if its worth the price being twice that of the Vortex. Im also...

So I bought the SAINT the basic model with the high front sight. How can I add an optic. Is their a high OPTIC or some sort of low profile I could get to take the front sight off?