Both mounts no matter what they are are going to put the scope to high above the bore to comfortability shoot and be accurate. I would just stick to the Irons. That is me I feel that if you want a scope on an AR get a flat top. Or your going to need to get a stock that has an adjustable comb on it so you can raise it way up to get it where your eye alignment is right.
Typical distance from eye to cheek on an adult is 1.5". Higher than that and you are starting to not rest on your cheek bone and rest on your chin your chin is unstable (meaning that it moves side to side and up and down). This will cause you to shoot worse.
The biggest draw back to see through rings or mounts is the restriction of the Field of View (FOV). SO it is like breaking your arm to fix a broken arm. doesn't work out well in the long run.
Why on earth are you wanting a 6-24x50? Granted That is what is on top of my ar but they are slightly different. Mine is a varmint type rifle with a flat top. Yours sounds like a regular A2 style AR. That 6-24x50mm is a great scope and it is a rather LARGE scope too.
Mine with 1" tall rings. These ended up being to high for me.
Here it is with 3/4" rings and it works much better in this config.