Even super glue will come off. I had a nice ramp sight from an old half broken pellet rifle I found. I super glued it in place, a few dats later I felt great and went to a game. I guess I forgot to drill the hole and tap in the screw cause that sweet sight is gone bro,lol.. I felt so crappy man,hahaha. The hole is easy to do, best thing is starting with a small hole and work your way up to size. That makes less drill bit slippage and also less wear on the bits. Make sure you use super glue gel so you have time to set it where you want it. About 2 hours later get out the drill.You could always use a rail attatched flip up sight for and m4 or something short/low profile but they may all me too tall I dont know. Also depends on how crafty you are. I think a g36 front sight would look nice. Some dremel work would need to be done but its possible.
