A handle assembly (100, 200) for a surgical instrument, comprising: a housing (110, 210) defining a longitudinal axis, wherein the housing includes a body portion (112, 212) and a fixed handle portion (114, 214) depending from the body portion; a trigger (142, 242) operably coupled to the housing and pivotable towards the fixed handle portion to cause actuation of the handle assembly; a drive member movable within the housing from an initial position to an advanced position in response to actuation of the trigger; and a feedback mechanism (160, 260) in operable engagement with the trigger and configured to create at least one of an audible or a tactile response upon complete actuation of the handle assembly, the feedback mechanism comprising: a ramp portion (166, 266) having an inclined surface (166a, 266a) and an edge surface (166b, 266b); and a sounding surface disposed adjacent the edge surface of the ramp portion, wherein the feedback mechanism (160, 260) further comprises: a torsion spring (170, 270) having an elongate body (172, 272), a hammer portion (172a, 272a) on a first end of the elongate body, and a spring portion (174, 274) on a second end of the elongate body; wherein the feedback mechanism (160, 260) is configured such that the hammer portion (172a, 272a) of the torsion spring (170, 270) engages and moves up the inclined surface (166a, 266a) of the ramp portion (166, 266) during actuation of the handle assembly to transition the torsion spring to a loaded condition during actuation of the handle assembly, and slides off the edge surface (166b, 266b) of the ramp portion and into engagement with the sounding surface to unload the torsion spring and to create the at least one audible or tactile response upon complete actuation of the handle assembly. a housing (110, 210) defining a longitudinal axis, wherein the housing includes a body portion (112, 212) and a fixed handle portion (114, 214) depending from the body portion; a trigger (142, 242) operably coupled to the housing and pivotable towards the fixed handle portion to cause actuation of the handle assembly; a drive member movable within the housing from an initial position to an advanced position in response to actuation of the trigger; and a feedback mechanism (160, 260) in operable engagement with the trigger and configured to create at least one of an audible or a tactile response upon complete actuation of the handle assembly, the feedback mechanism comprising: a ramp portion (166, 266) having an inclined surface (166a, 266a) and an edge surface (166b, 266b); and a sounding surface disposed adjacent the edge surface of the ramp portion, wherein the feedback mechanism (160, 260) further comprises: a torsion spring (170, 270) having an elongate body (172, 272), a hammer portion (172a, 272a) on a first end of the elongate body, and a spring portion (174, 274) on a second end of the elongate body; wherein the feedback mechanism (160, 260) is configured such that the hammer portion (172a, 272a) of the torsion spring (170, 270) engages and moves up the inclined surface (166a, 266a) of the ramp portion (166, 266) during actuation of the handle assembly to transition the torsion spring to a loaded condition during actuation of the handle assembly, and slides off the edge surface (166b, 266b) of the ramp portion and into engagement with the sounding surface to unload the torsion spring and to create the at least one audible or tactile response upon complete actuation of the handle assembly. a ramp portion (166, 266) having an inclined surface (166a, 266a) and an edge surface (166b, 266b); and a sounding surface disposed adjacent the edge surface of the ramp portion, wherein the feedback mechanism (160, 260) further comprises: a torsion spring (170, 270) having an elongate body (172, 272), a hammer portion (172a, 272a) on a first end of the elongate body, and a spring portion (174, 274) on a second end of the elongate body; wherein the feedback mechanism (160, 260) is configured such that the hammer portion (172a, 272a) of the torsion spring (170, 270) engages and moves up the inclined surface (166a, 266a) of the ramp portion (166, 266) during actuation of the handle assembly to transition the torsion spring to a loaded condition during actuation of the handle assembly, and slides off the edge surface (166b, 266b) of the ramp portion and into engagement with the sounding surface to unload the torsion spring and to create the at least one audible or tactile response upon complete actuation of the handle assembly. a torsion spring (170, 270) having an elongate body (172, 272), a hammer portion (172a, 272a) on a first end of the elongate body, and a spring portion (174, 274) on a second end of the elongate body; wherein the feedback mechanism (160, 260) is configured such that the hammer portion (172a, 272a) of the torsion spring (170, 270) engages and moves up the inclined surface (166a, 266a) of the ramp portion (166, 266) during actuation of the handle assembly to transition the torsion spring to a loaded condition during actuation of the handle assembly, and slides off the edge surface (166b, 266b) of the ramp portion and into engagement with the sounding surface to unload the torsion spring and to create the at least one audible or tactile response upon complete actuation of the handle assembly.