An injector system for injecting fluid comprising: a syringe (102, 202a, 202b) comprising: a body (110, 212) comprising a rearward end and a forward end; a plunger movably disposed within the body (110, 212); and an injector (108, 204) comprising: a housing having a front plate defining a syringe-receiving opening therein; a drive member (122, 146) at least partially disposed within the housing and operable to engage the plunger disposed within the syringe (102, 202a, 202b); characterized in that the plunger has at least one flexible leg extending toward the rearward end of the body (110, 212); the drive member (122, 146) is operable to releasably connect the at least one flexible leg to at least a portion of the drive member (122, 146); and the injector further comprises: a syringe release gear that forms an enclosure for receiving the syringe (102, 202a, 202b) when the syringe (102, 202a, 202b) is fully seated within the housing, the syringe release gear mounted to a rear side of the front plate; and a plunger release tube surrounding at least a portion of the drive member (122, 146), the plunger release tube having a first end rotationally engaged with the syringe release gear, such that rotation of the syringe release gear rotates the plunger release tube and the rotation of the plunger release tube causes a cam action at a release cam surface causing an axial extension of the plunger release tube relative to the drive member (122, 146) to engage the at least one flexible leg and release the at least one flexible leg from the drive member (122, 146). a syringe (102, 202a, 202b) comprising: a body (110, 212) comprising a rearward end and a forward end; a plunger movably disposed within the body (110, 212); and a body (110, 212) comprising a rearward end and a forward end; a plunger movably disposed within the body (110, 212); and an injector (108, 204) comprising: a housing having a front plate defining a syringe-receiving opening therein; a drive member (122, 146) at least partially disposed within the housing and operable to engage the plunger disposed within the syringe (102, 202a, 202b); characterized in that the plunger has at least one flexible leg extending toward the rearward end of the body (110, 212); the drive member (122, 146) is operable to releasably connect the at least one flexible leg to at least a portion of the drive member (122, 146); and the injector further comprises: a syringe release gear that forms an enclosure for receiving the syringe (102, 202a, 202b) when the syringe (102, 202a, 202b) is fully seated within the housing, the syringe release gear mounted to a rear side of the front plate; and a plunger release tube surrounding at least a portion of the drive member (122, 146), the plunger release tube having a first end rotationally engaged with the syringe release gear, such that rotation of the syringe release gear rotates the plunger release tube and the rotation of the plunger release tube causes a cam action at a release cam surface causing an axial extension of the plunger release tube relative to the drive member (122, 146) to engage the at least one flexible leg and release the at least one flexible leg from the drive member (122, 146). a housing having a front plate defining a syringe-receiving opening therein; a drive member (122, 146) at least partially disposed within the housing and operable to engage the plunger disposed within the syringe (102, 202a, 202b); characterized in that the plunger has at least one flexible leg extending toward the rearward end of the body (110, 212); the drive member (122, 146) is operable to releasably connect the at least one flexible leg to at least a portion of the drive member (122, 146); and the injector further comprises: a syringe release gear that forms an enclosure for receiving the syringe (102, 202a, 202b) when the syringe (102, 202a, 202b) is fully seated within the housing, the syringe release gear mounted to a rear side of the front plate; and a plunger release tube surrounding at least a portion of the drive member (122, 146), the plunger release tube having a first end rotationally engaged with the syringe release gear, a syringe release gear that forms an enclosure for receiving the syringe (102, 202a, 202b) when the syringe (102, 202a, 202b) is fully seated within the housing, the syringe release gear mounted to a rear side of the front plate; and a plunger release tube surrounding at least a portion of the drive member (122, 146), the plunger release tube having a first end rotationally engaged with the syringe release gear, such that rotation of the syringe release gear rotates the plunger release tube and the rotation of the plunger release tube causes a cam action at a release cam surface causing an axial extension of the plunger release tube relative to the drive member (122, 146) to engage the at least one flexible leg and release the at least one flexible leg from the drive member (122, 146).