Not a one piece mount - Nikon M-Series XR Mount (30mm)

I was surprised to find that the mount is not integrated with either rail. Could not get usable windage no matter how I tightened the base to the upper, despite using a torque wrench.
Ultimately, there is too much left/right play in this setup (over 20moa), which means that it will be susceptible to major windage shifts, if the scope is bumped or tapped.
Went with an ADM, and am now quite happy.
Pros: 20 moa
Cons: only 2 screws/ring, separate mount/base, inconsistent mounting

This review was written in the old system and had content requirements that are different than reviews written today.