Found a You Tube how to showing the installer push the rail forward until the lug is contacting the receiver ring. Then he checks that the screws are lined up and proceeds to tighten the base screws....
Maybe someone knows a 12 year old who can do the link thing..
For such a cheap rail, it is the only one lugged for recoil. I ordered some so we shall soon know. Also ordered the DNZ because of the full size cap screws. Just installed one of their Tactical base ring one piece mount. DNZ uses big long ring screws, in fact, eight of them ! The DNZ ring sides are milled flat if you put a square to the ring base, the top leg of the square will provide a reference to turn the scope ...when the square lines up with the scope cap you are level to the base.
