I'm new to rifles and red dots. I just bought the 995TS and a Firefield Reflex XLT red dot. My rear sight takes up a lot of space and requires me to put the XLT too far to the front. So, I removed the rear sight. Is there any reason to keep the front sight on? If the XLT malfunctioned, the front sight by itself wouldn't be of any use, would it?