In one embodiment, a resettable injection training device is provided herein. The injection training device includes an outer shell comprising a proximal end and a distal end, the outer shell defining a chamber there within, and a plunger slidable within the chamber, the plunger comprising a plunger feature and one or more rail portions. The injection training device further includes a locking safety shield disposed and slidable within the chamber, the safety shield comprising a proximal end and a distal end, the distal end for interfacing with a target surface to actuate the injection training device, the safety shield comprising an extended locked position, an extended unlocked position, and a retracted position. The injection training device further includes a rotatable plunger collar comprising a plunger collar tab for interfacing with the plunger feature and with the safety shield, wherein the plunger collar is rotated in a first direction to release the plunger from a pre-fired position to a fired position, a rotatable safety shield collar comprising a locking tab, the locking tab for interfacing with the safety shield to lock the safety shield in an extended, locked position in the fired position, and a reset component disposed within the chamber, said reset component configured to interface with the safety shield collar to unlock the safety shield during reset of the device.