The material below is Open Game Content from a 3PP Source
Aura moderate evocation; CL 6th
Slot shield; Price 5,580 gp; Weight 15 lbs.
This +1 heavy steel shield is covered in spines. It acts as a normal spiked shield. On command up to three times per day, the shield's wearer can fire one of the shield's spines. A fired spine has a +1 enhancement bonus, a range increment of 120 feet, and deals 1d10 points of damage (19–20/x2). Fired spines regenerate each day.
Requirements Craft Magic Arms and Armor, magic missile; Cost 2,875 gp