I have only had a chance to check out the optic and not much opportunity to actually go shooting yet. As for the optic the glass is clear, buttons are easy to press, and mounted up to my glock 17 slide perfectly. Besides the optic Misty at Spectre Ordnance I could not say better things about. I placed my order and the 407c was backordered with no re-stock date. She reached out and worked with me to resolve this issue. The entire process from start to finish could not have been better or smoother. I could not recommend working with them more.