– Xochielt Sanchez
Answer by Robert Frost:
What was the question again?
Lt. Marla McGivers, Yeoman Mear, and Lt. Uhura all armed with phasers.
In the original series, the armed security personnel were almost exclusively played by large male actors, whereas actresses usually played specialists or yeomans and were equipped with tricorders.
Look carefully and there are a lot less phasers than one would think and sometimes they are carrying the smaller, palm-sized phasers. The animation effect for the phaser beam was quite expensive.