After the base was adjusted the installation was a breeze...




no more gap in front...fit was perfect


the red dot sight looks like it "belongs" there...




the Sig Rome Zero has an integrated rear sight.


Adjustment for windage and elevation is easy, however; manufacturer recommends not to over-tighten the adjustments screws since it can damage the Red dot sight.


Pistol owner (Cherrypointmarine) is happy with the results. This is a pic of the calibration session at the range. (Pins in the back were easy to hit...)

Hope this helps...
Guzzi