Wish I could remember. It was a few years ago. Hopefully the person that did mine has moved on to other things. Just check it out when it comes home. Also, make sure you shoot lots of different ammo in it to make sure it lights everything up properly. If they put in different mainspring and rebound spring, like they did on mine, you should be sure it works with your ammo first. Mine didn't. They put in the Type 2 Wolff mainspring, which is lighter than the Type 1 spring.
If you aren't happy with what they do, call them and tell them what you think about their work. I was so mad I didn't ... and wish I had called.
Doc