I have the Magpul edition of the Colt LE6920. I am thinking of getting the Aimpoint Pro pretty soon BUT was wondering - is there enough real estate on the upper to put the AP Pro AND have room for a Magnifier down the road or do I have to get another mount that would position the optic forward? I really like the Pro and its price point but would hate to spend $180 for a LT forward mount. Are there any more budget friendly ways to do this if the forward position is necessary? What if I went with the EXPS Eotech instead? Thinking this may not be an issue. Let me know your thoughts for those of you that have experience with these issues. Thanks!!