The Winchester Model P94 plasma rifle is an industrial-grade energy weapon, firing super-heated bolts of plasma down a superconducting barrel ending in electromagnetic claws helping to form the plasma bolt. It is powered by microfusion cells.
This rifle appears in Fallout, Fallout 2 and Fallout Tactics. In Fallout 3, it was replaced by the Enclave plasma rifle, and is only mentioned by Owyn Lyons. However, it makes a return appearance in Fallout: New Vegas in its original form.