Crew-served, quad-barrel magic missile wands on alt-azimuth mounts.
Windup miniature spell caster: rocks back and forth, waves arms and moves mouth while music box chimes sound out an incantation - each one has a single spell and fixed skill, but anyone can spend the FP by winding it up IF they have one of the special keys. Target selected by the winder while winding, OR can be set as a trap to attack the first person to disturb it.
I recommend liberally borrowing
Goa'uld gadgets, particularly the non-disintegrating Zats, the Kara Kesh, and the Hara'kesh.