I'm a big fan of these and have several. They ain't cheap but they're durable and in my experience return to zero every time. Also easy to mount a scope in them without twisting if you follow the directions. They also make one that's cantilevered out a bit farther and would be the one to use if you do a lot of prone shooting.

http://www.larue.com/larue-tactical-...ount-qd-lt-104

The 1.5" height from top of rail to center of scope should provide you with a clue about what ring height to use if you prefer something a bit more conventional or cheaper.