You should have gotten a tiny allen wrench to adjust the elevation and windage.........
What I do is put up a piece of white paper at 50 feet..........Using you iron sites and resting the weapon on the bench, shoot a single hole in the paper......
Now line up the red dot from the laser right over the hole you just made......
Shoot another round and if it hits the first hole, you are good to go.......If not, used the allen wrench to adjust the laser dot to land on the original hole in the paper.......
Now put up another plain white paper and shoot a hole using the laser.......Shoot another round using the laser and if the shot hits the original hole, you're done........If not, keeping adjusting the elevation and windage until you can hit a small black dot on a target by putting the laser dot on the black dot on the paper....
You'll then know the laser is deadly accurate at 50 feet, and even better at closer distances..........
Once you've got the trick of adjusting the laser you'll hit anything at 50 feet just by putting the laser dot on where you want the round to go....
John