I AM IN THE PROCESS OF MAKING A CUSTOM SURVIVAL KNIFE/ BAYONET THAT WILL FIT AN M16. I THINK THE M7 IS A GREAT DESIGN AND PLAN ON BUYING ONE TO USE AS A TEMPLATE FOR THE GUARD/HANDLE AND ATTACHING HILT. I HAVE DONE SOME RESEARCH ON THIS STYLE BAYONET(THERE ISN'T MUCH OUT THERE) AND READ THE MANUALS BUT NOWHERE DOES IT SAY HOW THE BUTT END OF THE HANDLE IS ATTACHED TO THE TANG, IS IT SCREW OR WELDED? ANYONE HAVE ANY INFO I WOULD BE MOST THANKFUL.