The Fastener PT50 Pneumatic Staple Gun is one of ?s most popular staple guns. Unlike other pneumatic staple guns, the PT50 has bump fire action, making any professional or home project a breeze. This electric staple gun has a variety of preferred features, from an easy-load magazine to a contact safety mechanism, to an adjustable exhaust cover. The PT50 Pneumatic Staple Gun is ideal for professional or general repairs, insulation installation, upholstery projects, and more.