Strap cutting pliers

This is a nice clean  long special purpose pliers, mounted on a end nipper style frame. I don't know for sure what the application was for this tool, but I believe it was intended for use with fire arms of some sort, The other side of the jaws is a threaded screw pinned in place at what appears to be a pre-set distance from the other side of about

The primary purpose of the tool known as pliers is to grip objects firmly.The objects can then be turned, bent, or otherwise manipulated. Pliers have parallel handles, a pivot where the handles join, and parallel jaws that grasp the object.Special-use pliers may have additional components and purposes, such as cutting pliers. Types of pliers include engineer's pliers for gripping metal, flat-nosed pliers for grasping smaller objects, electrician's pliers for gripping electrical wires, and round-nosed pliers for bending wire into loops. The most common are slip-joint and plumber's pliers, both with slip-joint adjustments to change the width of the jaw grip. In addition, locking pliers.