I’ve had the MAD sight for about 2 years now and never noticed until today that there is a small gap under the sight and it cants to the left when attached to my LMT upper. so i tried to attach it to my KAC ras rails to see if it was the sight and the same thing happened when i tightened it down. so i tried it on my Troy DI rails, sat fluch to the rails and straight up and down, no cant. has anybody had this issue?