<p>An arsenal of exotic weapons - including a sniper rifle, a spear and a set of 8-inch metal claws - were seized from a 23-year-old Jersey City man after his worried father called cops. When South District cops responded to the Greenville home yesterday morning, they found the sniper rifle - with a powerful scope and a laser sight - as well as three Glock handguns and more than 1,200 rounds of ammunition, reports said. Among the bullets were illegal "hollow-point" rounds, police said. In addition to the spear and metal claws, cops found a number of savage-looking knives, including one that had blades coming out of each end of its carved wooden handle. The owner of the weapons lived with his father, his brother and two younger brothers, police said.</p>