Abstract: An endoscope cap assembly for use with an endoscope having a distal and a proximal end, the assembly including: a hollow body having an orifice with a lip; a compression clip including a pair of compression elements the clip having an open configuration when the compression elements are spaced apart and a closed configuration when the compression elements are adjacent to each other, the clip positioned in its open configuration adjacent to the lip of the orifice; a severing element positioned in a groove between the compression elements and the hollow body, the severing element operable for severing tissue; and one or more restraining elements in mechanical communication with the clip, the restraining elements operable to allow the clip to transition from its open to its closed configuration. An endoscope system using the above defined endoscope cap assembly and a method for using the endoscope cap assembly.