It is no Star Trek phaser, but the props from Space: 1999 are very underrated.
According to Hake’s:
5×7” blister card contains 3.5″ tall plastic gun by AHI ©1976 ATV Licensing Ltd. Gun has “Space: 1999” raised logo on side. Battery-operated, gun functions as flashlight and produces a click action noise. Card shows light wear but unpunched and Exc. Mint as packaged.
Space: 1999 Stun Gun [@] Hake’s