Got my Unit 1 conversion kit in, nicely done with a nylon padded carrying case, installed no problem. I got the sti conversion kit with the doublestack mags. Unfortunately I have single stack. While the mags do fit when the panels are removed I cant get a bumper pad on. Our range is outdoors and I havent had a chance to test it yet. Maybe when I take a trip out of town I will try it out in a indoor range...
