A surgical clip applier, comprising: a housing comprising a pin; at least one handle movably connected to the housing; a channel assembly extending from the housing; a clip carrier disposed within the channel assembly and defining a channel; a plurality of clips loaded in the channel of the clip carrier; a drive channel, operably connected to the at least one handle, movably supported in the housing and the channel assembly, and comprising a tab; a clip pusher bar reciprocally positioned within at least one of the housing and the channel assembly; and a linkage mechanism that couples the drive channel to the clip pusher bar, the linkage mechanism comprising a driver link arm pivotally connected to a driven link arm; wherein the driven link arm comprises a first, distal end pivotally connected to proximal end of pusher bar, the driver link arm comprising a first, distal end pivotally connected to a second, proximal end of driven link arm, and a second, proximal end defining a slot configured to slidably receive the tab of drive channel, the driver link arm defining a central eyelet for pivotal connection to the pin, such that driver link arm is axially fixed with respect to housing; wherein the surgical clip applier is configured such that actuating the at least one handle transmits distal axial movement to the drive channel, causing the tab to engage the slot, rotating driver link arm about the pin, and pulling driven link arm in a proximal direction which retracts the clip pusher bar in a proximal direction, wherein returning the at least one handle to an un-actuated position transmits proximal axial movement to the drive channel; and characterized in that one or both of the driver link arm and the driven link arm comprises one or more stop members (302; 402) extending therefrom configured to limit over-stroke of the clip pusher bar by providing a positive stop against the other of the driver link arm and the driven link arm, preventing over-rotation of the driver link arm. a housing comprising a pin; at least one handle movably connected to the housing; a channel assembly extending from the housing; a clip carrier disposed within the channel assembly and defining a channel; a plurality of clips loaded in the channel of the clip carrier; a drive channel, operably connected to the at least one handle, movably supported in the housing and the channel assembly, and comprising a tab; a clip pusher bar reciprocally positioned within at least one of the housing and the channel assembly; and a linkage mechanism that couples the drive channel to the clip pusher bar, the linkage mechanism comprising a driver link arm pivotally connected to a driven link arm; wherein the driven link arm comprises a first, distal end pivotally connected to proximal end of pusher bar, the driver link arm comprising a first, distal end pivotally connected to a second, proximal end of driven link arm, and a second, proximal end defining a slot configured to slidably receive the tab of drive channel, the driver link arm defining a central eyelet for pivotal connection to the pin, such that driver link arm is axially fixed with respect to housing; wherein the surgical clip applier is configured such that actuating the at least one handle transmits distal axial movement to the drive channel, causing the tab to engage the slot, rotating driver link arm about the pin, and pulling driven link arm in a proximal direction which retracts the clip pusher bar in a proximal direction, wherein returning the at least one handle to an un-actuated position transmits proximal axial movement to the drive channel; and characterized in that one or both of the driver link arm and the driven link arm comprises one or more stop members (302; 402) extending therefrom configured to limit over-stroke of the clip pusher bar by providing a positive stop against the other of the driver link arm and the driven link arm, preventing over-rotation of the driver link arm.