Taking it out AND then taking it completely apart. I took it apart the first time to swap out the trigger guts for the Grayguns kit and felt pretty unsure of myself at first. However, there's a ton of videos on YouTube on how to take it all down and put it back together. Coming from a 19/2011 world it looked more complicated at first, but it really isn't. Once you do it a few times you can almost do it with your eyes closed.