Psyched! I got the 10158 which is the model with the replaceable grips and 5.5" bull barrel. I'm lookin forward to breaking it in. I have a variety of different .22 lr to try. What I'm not looking forward to is takedown, but just like anything once you do it a few times its easy. I was wondering if I would be able to swap the grips with any 1911 model? I am also going to get a decent optic for it, nothing too pricey.