Increases the bear trap fist's damage by 3.
The HD springs code holotape can be found in the Salida del Sol South roughly 4 feet from the switches where the Courier leaves Dog and God at the end of Fires in the Sky, on the floor to the north in a small pile of rubble.
Like all other mods, the bear trap fist HD springs appears in a Gun Runners case when dropped, but it is about 1/2 the size of the usual cases.
May not spawn, which will cause it to be unobtainable. [verified]