The knife on the MUT is a combo edge knife that comes to you razor sharp out of the box. The other two bits are stored on the other handle. It should be fairly easy to pull out but the smaller bit can be a bit hard at first if you are wearing gloves. They cut the various gauges of wire both comms and full copper I had around as well as some small steel cables. Right in front of the strap cutter is a small latch.
You do this by collapsing your stock, removing the magazine and placing the weapon on safe. What was going on here? For anyone unfamiliar with an Entlebucher Mountain Dog as if! In an emergency situation this should be able to get through a seatbelt or harness with only a bit of jiggling.