Caulking will be easy with this lightweight, quick-change gun. This 18:1 thrust ratio caulking gun accepts up to 20 ounce sausage packs and 10 ounce cartridges. Features include a chemical resistant, twin hytrel cup, conical plunger, instant pressure release, steel T-bar, zinc alloy handle and rotating barrel. Sausage tip included (additional sausage tips available in 10-pack, AGC2110).