You can hear the safety coming off and then two shots were fired (all you get). It does have sights on it and I don't know if the first shot was low due to the age of the device, it came from the lower chamber, or due to the fact I was pushing maximum range. If you do have to light one of these off, drop it when you are done as residue was beginning to leak from the muzzle of the unit after the shots. Kimber states the minimum distance for safe firing is two feet. I don't know if I would do that, but if it was all I had I would take the chance for cross contamination.
Oh, it IS a Kimber so make sure you have the special grease for it, LOL!