This gets a little obnoiously long, but when it was all said an done, without messing with the video recording and talking, it's about a 30 mins job to swap a set of sights on most pistols.I've tried to include some extra informaiton as I went along and coverd the whole process on video. This process would be the same on the VP40 as well as pretty much all other modern HK pistols as well as other modern pistols.
