I am new to the AR competition world. I would like to do a few, travel and time permitted. I have a 6920, dd rail, and a few other add ons. My next purchase is a good scope. I was thinking veriable power. My thoughts are

Leupold mark 4 MRT 1.5x5 ( 1 chioce so far )
Burris XTR 1x4
Trijicon TR24 1x4

They would have a Larue QD mount. Anybody have opinions on these or other like scope that would be helpful?

Thank you
George