The body is made of aluminum alloy and it's more powerful and durable Features a magnet in the muzzle. When you load nails, it can hold nails easily and shoot accurately. Cut time down considerably and protect your finger from accidental injury. A board tray is used to load the nails in advance. Can be interchanged with different sizes muzzle sleeve with Allen keys based on your deco nails’ head diameter. Nailer will come with model number 1170 muzzle sleeve but other models are not contained. If you are interested in other models, welcome to contact us.