Another thread on the board got me thinking. While it is true that there are no ways to do ranged weapon foci, I was wondering how hard it would be to make an item that contained knowledge of a spell, and allowed its wielder to use spellcasting with this particular item providing the knowledge of the spell, at a certain (predetermined) Force. The user would still take Drain as normal, of course, and any penalties for sustaining spells, but this would be an interesting way to add some fun things for mages and mystic adepts, without too much balance issues.
For instance, a revolver that shot Flamethrower spells, or a pin that gave access to Physical Mask, or a sword that casts Slaughter Orks, or a ring of Invisibility. You'd still be casting the spell, and taking drain, but at a preset force, and the item would provide knowledge of the spell. Meaning that if you lost the item, you'd lose the spell. I'm not talking about anything so involved as anchoring or quickening, but more along the lines of something like a Wand or Staff from D&D. Something that would allow access to the spell, and then you cast it at the set force, using your normal number of dice, and resisting drain as normal.
Honestly, I don't know if it is possible under the current rules, but it would be fun. Just a bit of brainstorming.