This gun takes standard quart cove base adhesive cartridges. The smooth pushrod delivers continuous feed and pressure. Rod pressure is released for reloading or for stopping the flow using an easy-access thumb lever. A handy cutter is built in to the handle to cut the end off the plastic tip of the cartridge. A riveted 5 ½” long needle pivots out from the body to break the cartridge seal through the tip of the cartridge. Durable and economical all-steel construction. Includes gun only – no adhesive cartridge is included.