The Salvimar Intruder Wild Pro Speargun has a cylindrical 1.1" (28mm) barrel in aeronautical aluminum alloy. Bridge head to secure slings and ergonomic handle with heavy metal trigger mechanism. Elastics sling with threaded bushing make changing rubbers a breeze for easy maintains. Slings are 16mm (0.63") diameter and either 11" or 12.6" (28 cm or 32 cm) in length depending on the gun size. The gun has a single floppy barbed Tahitian auction spear point and the shaft is double notched for desired power. Gun is available in two sizes depending on you hunting requirements. Gun is available in a 15.75" or 19.7" (40 cm or 50 cm) length. Short model gun is easy to maneuver and great for small to medium fish. Warranty Information