A handle assembly of a reposable surgical clip applier configured to releasably engage at least two different endoscopic assemblies, the handle assembly comprising: a housing defining a body portion and a fixed handle portion extending from the body portion; a trigger pivotably connected to the housing and movable relative to the fixed handle portion between an un-actuated position and an actuated position; a drive bar slidably supported within the body portion of the housing and operably coupled to the trigger such that movement of the trigger from the un-actuated position towards the actuated position translates the drive bar distally through the body portion of the housing, the drive bar including a ratchet rack disposed thereon; a ratchet pawl pivotably supported within the housing and movable relative thereto between a use position, wherein the ratchet pawl is positioned to engage the ratchet rack upon distal translation of the drive bar, and a bypass position, wherein the ratchet pawl is displaced from the ratchet rack to inhibit engagement therewith upon distal translation of the drive bar; a receiver assembly configured to releasably engage an endoscopic assembly (200, 300) therein; and a bypass assembly, characterised in that said bypass assembly is operably positioned between the receiver assembly and the ratchet pawl and configured such that, upon insertion of a first type of endoscopic assembly into engagement with the receiver assembly, the bypass assembly urges the ratchet pawl to move to the bypass position to disable ratcheting during distal translation of the drive bar, and such that, upon insertion of a second type of endoscopic assembly (200, 400) into engagement with the receiver assembly, the bypass assembly is undisturbed such that the ratchet pawl remains disposed in the use position to enabling ratcheting during distal translation of the drive bar, and wherein the bypass assembly includes a sleeve defining a distal rim configured to interfere with the first type of endoscopic assembly upon insertion of the first type of endoscopic assembly into the receiver assembly such that the first type of endoscopic assembly urges the sleeve proximally to thereby move the ratchet pawl from the use position to the bypass position. a housing defining a body portion and a fixed handle portion extending from the body portion; a trigger pivotably connected to the housing and movable relative to the fixed handle portion between an un-actuated position and an actuated position; a drive bar slidably supported within the body portion of the housing and operably coupled to the trigger such that movement of the trigger from the un-actuated position towards the actuated position translates the drive bar distally through the body portion of the housing, the drive bar including a ratchet rack disposed thereon; a ratchet pawl pivotably supported within the housing and movable relative thereto between a use position, wherein the ratchet pawl is positioned to engage the ratchet rack upon distal translation of the drive bar, and a bypass position, wherein the ratchet pawl is displaced from the ratchet rack to inhibit engagement therewith upon distal translation of the drive bar; a receiver assembly configured to releasably engage an endoscopic assembly (200, 300) therein; and a bypass assembly, characterised in that said bypass assembly is operably positioned between the receiver assembly and the ratchet pawl and configured such that, upon insertion of a first type of endoscopic assembly into engagement with the receiver assembly, the bypass assembly urges the ratchet pawl to move to the bypass position to disable ratcheting during distal translation of the drive bar, and such that, upon insertion of a second type of endoscopic assembly (200, 400) into engagement with the receiver assembly, the bypass assembly is undisturbed such that the ratchet pawl remains disposed in the use position to enabling ratcheting during distal translation of the drive bar, and wherein the bypass assembly includes a sleeve defining a distal rim configured to interfere with the first type of endoscopic assembly upon insertion of the first type of endoscopic assembly into the receiver assembly such that the first type of endoscopic assembly urges the sleeve proximally to thereby move the ratchet pawl from the use position to the bypass position.