PRO GUN (Item 616SAE)- Strong, lightweight, metal construction, ensures reliability- minimal wasted trigger action and increased working life, Comfortable operation due to smooth, effortless action, contoured trigger and balanced design, Premium epoxy powder coating resists corrosion, Superior spot welds prevent the end ring ?;popping off? under high pressure, Hanging hook enhances safety and convenience as applicator can be hung from the ladder, gutter, belt, etc., Dripless function releases pressure from cartridge automatically, Suitable for Medium to Large stores a must for Tradesmen and Professional customers, Dispenses 300 ml cartridges of silicone, acrylic, timber adhesive, mastic and caulk, Polyurethane and High Viscosity Materials,