Ultra Low Rise Clamping Feedneck for Ion, Impulse, Shocker, Omen, Piranha, Bushmaster, and other similar markers. Total height is less then 1.25 inches. Our Ion Feed neck was created to hold on to your hopper and not let it go. Made from high-grade aluminum this feed neck uses the clamping style and has a very low rise of only one inch. Our feed neck will not allow the hopper to rotate and will not damage your hopper. Made extremely durable with an affordable price point you can't go wrong with a Lapco made feed neck.