The Voodoo Rail Open comes with aluminum barrel and a continuous rail. The barrel is made in a special aeronautical aluminum alloy of high mechanical performance. It is watertight by the double o - ring on both handle and muzzle. Arranged with a 6.5mm diameter Torsion Evo 2 line shaft and 17.5mm or 19mm diameter power bands (for up to 105 cm length guns) as standard equipment. The sternal support can be removed preferably. The trigger run can be micro - mechanically adjusted by the proper screw in accordance with the needs of the spear fisher.