Sorry folks- Any pistol conversion kit that touches the slide with the pistol is inherently perilous....I understand- I had a G19 within a Roni blow up in my fingers whilst taking pictures fast hearth below in Israel. Using the Roni. And, Using the addition of a front spare magazine holder, https://glock-18-upper41859.daneblogger.com/26350901/manual-article-review-is-required-for-this-article