How do I tell if I have a Gerber MP400 or MP600? This is a very simple question we get all the time. We decided we’d take a moment to answer this question with a simple answer. When your tool is closed, measure its length. If it is about 4.5 inches then you likely have a Gerber MP400. If your tool is slightly longer than 5 inches, you likely have a Gerber MP600. Below is a video that illustrates how to tell if you have a Gerber MP400 or MP600 series multitool.
Here is a link to the leather sheath for the Gerber MP400
Here is a link to the leather sheath for the Gerber MP600