An apparatus for application of surgical clips to body tissue, the apparatus comprising: a) a handle assembly； b) a shaft assembly extending distally from the handle assembly and defining a longitudinal axis； c) a plurality of surgical clips disposed within the shaft assembly； d) jaws mounted adjacent a distal end portion of the shaft assembly, the jaws including a pair of jaw members movable between a spaced-apart and an approximated position； e) a clip pusher bar (156) configured to individually distally advance a surgical clip to the jaws while the jaw members are in the spaced apart position； f) a drive bar (140) at least partially disposed within the handle assembly and the shaft assembly, the drive bar (140) being longitudinally movable in response to actuation of a trigger of the handle assembly； g) a drive channel positioned adjacent the first and second jaw members to move the jaw members to the approximated position； and h) a trip mechanism (192) supported on the drive bar (140), the trip mechanism includes a trip lever (196) biased into contact with the clip pusher bar, wherein distal movement of the drive bar moves the trip mechanism until the trip lever (196) thereof engages a lip of the clip pusher bar (156) and in turn distally moves the clip pusher bar.
