#gun_trigger__guntrigger__trigger  lever that activates the firing mechanism of a gun
  supertype:  lever  a rigid bar pivoted about a fulcrum
  subtype:  hair_trigger  a gun trigger that responds with little pressure
  part of:  gun  a weapon that discharges a missile at high velocity (especially from a metal tube or barrel)

No statement uses or specializes gun_trigger; click here to add one.