Later on, when Lois Lane was released from her cell, Car-Vex came up with her weapon, only for Jor-El to shut the door, knocking the weapon out of the trooper's hand and telling Lois to pick it up. Jor-El also assisted in telling Lois where to shoot, while escorting her to an escape pod; however, the weapon was taken out of Lois's hand when she tried shooting on Car-Vex, who was attempting to stop the former's escape. Car-Vex did, however, manage to hit the escape pod with several shots, successfully damaging it as it launched from the Black Zero.
After the Black Zero Event in Metropolis, several Kryptonian weapons found their way onto the black market. Some criminals used these weapons including a Kryptonian pistol to break into Wayne Enterprises R&D Facility and steal from the vault. They were ultimately stopped by Superman who destroyed the weapons afterwards.
Much like the Kryptonian Rifle, the pistol fires the same way; however it is much smaller, and emits a slightly smaller bolt of blue energy. The weapon does in fact use the same ammunition as it's rifle counterpart, and it uses a manual trigger system on semi-automatic fire, with no blowback function of any kind.