Better than just great! - Nikon M-Series 30mm Optics Mount

Bought this mount along with a Vortex II 6-24x50mm Scope. I was NOT disappointed. Mounted it in ten minutes on an AR10, 24" barrel of .243 caliber. I figured to spend some time getting it zeroed? NOPE! Bullet holed the bullseye at 100 yards not doing anything. Everything dead on right out of the box. I can remove and replace it and it's still zeroed. I like that. I've been out shooting three times and still haven't made any adjustments. I would call this mount a true one piece mount. You'll have to slide it down the rail with the fasteners removed to install it, it's tight! This is a great mount! ^..^~~