Surgical instruments are disclosed which comprise an improved staple firing and/or tissue cutting member. There is also provided a surgical instrument, comprising: a first jaw comprising a distal jaw end； a second jaw movable relative to said first jaw to capture the tissue of a patient between said first jaw and said second jaw； and a cutting member movable toward said distal jaw end during a cutting stroke, wherein said cutting member comprises: a coupling portion, comprising: a first cam configured to engage said first jaw during said cutting stroke； a second cam configured to engage said second jaw during said cutting stroke； a first lateral recess； a second lateral recess； and a mounting tab； and a bar, comprising: a first layer mounted to said coupling portion in said first lateral recess； a second layer mounted to said coupling portion in said second lateral recess, and an intermediate layer positioned intermediate said first layer and said second layer, wherein said intermediate layer is attached to said mounting tab.
