A magic could make a lighter, and it could make projectile weapons. Blades are the most common weapons, though, because with technomancy as common as it is there's a good chance an opponent may be armored. Indestructible titanium blades are the most effective weapon in that case, and using bullets or arrows or what have you of a similar material would be ridiculously cost prohibitive. 

Ergo: blades. 

You can give him a projectile weapon, just know that it might not be terribly useful.