The Milwaukee Caulk Gun Conversion Kit converts a standard 10 oz caulk gun into a sausage pack gun. It includes a steel barrel, piston assembly, and retaining cap to allow you to dispense 600 ml sausage packs. The kit is made of durable steel and is designed to fit most caulk guns. It provides an easy way to switch between cartridges and sausage packs without needing multiple caulk guns. The retaining cap ensures the sausage pack stays in place during use. This conversion kit gives you flexibility in the types of adhesives and sealants you can use.