Here is a picture of my ar15 carbine. I'm planning on putting a Lucid red dot on it but I also want to put 45 degree off aet sights on it. My problem is I have put the front sight on the gas block which is lower then the picattany rail on the upper. Does anyone know of a company that makes them specifically for this set up? Has anyone done this to their carbine? I've already replaced the but stock with a ajustable stock and want to make this gun my bug out gun.