Hello all! I just bought a G23, and I also purchased a video instruction on how to assemble/disassemble them, and maintenance to be performed. What amazed me was how easy it was to do, and put back together with no problem! Also, once taken apart it was very apparent how the safety designed parts worked, and how well done it was. Although, the person on the video recommended chamfering the exit port, and "smoothing" some other pieces...I think I will leave that one alone, though!