Okay, super safety has worked in the past with a milspec trigger, and decided to use my machinist profession to modify a Larue 2 stage MBT. Mod done relatively easily, but now I have an odd problem. When the gun is together for a functions check, it works fine while pointing up, but level or downward, it binds. Upper receiver sear shelf was milled back, and still didn't solve the problem. Same problem across multiple uppers.
