Seac-Sub Sting Sling Spearguns represent Top-level simplicity, practicality, and versatility. They are incredibly well made for an entry level gun and have superb accuracy & power characteristics. They are amazing value for money and the perfect Speargun for those new to the sport. As with all SEAC Spearguns you'll find that the Sting Models are perfectly balanced and are easy to handle, load and fire. Barrel: in extruded anti rust aluminium to maximize resistance and prevent bending. Double muzzle: allows mounting of one or two slings.