BTW this 1st shot is sighing in, I clamped the gun in the vice, lined up with a bullseye on the wall, about 45 ft away with the open sites lined up.
Then I removed the back sight , installed the plate ( dovetail slides in and plate screws on top to tighten dovetail) mount the red dot, line dot up with bullseye target on the wall and it was almost dead on when I shot out side.
I use to have a picture of the dot on the target, but I cleaned up some pictures I thought I would not need anymore. Always a mistake.
like selling parts you don't need , till you sell them.
PS you tell a Novak cut because there is a flat step milled in at the rear of the slide/ sight, you can see it on my picture, flat spot on rear of slide. Standard colt , rear will still be round on top.
BTW I don't need that mount anymore.