This is the Salvimar Metal Aluminum Spearfishing Speargun with Ergonomic Handle Features: Aluminum Barrel w/Integrated Shaft Guide Highly Accurate Design Dedicated for Big Game Hunting Barrel: Special Aeronautical Aluminum Alloy of High Mechanical Performance Micro-Adjusting Trigger Action Ergonomic Profile for Easy Handling in the Water Two Bands Equipped with Dyneema Wishbones Ergonomic Handle Open Muzzle Allows Addition of Bands Removable Chest Loading Butt Pad Salvimar&';s Stock Vertical Mount Reel he Salvimar Metal Spear Gun has an aluminum barrel with an integrated shaft guide for added accuracy. Gun has a tapered fractioned profile for improved maneuverability. The gun&';s handle has a metal trigger mechanism. The barrel is made by a special aeronautical aluminum alloy of high mechanical performance. The trigger run can be micro mechanically adjusted by the proper screw (Sensitive). The open muzzle allows the use of several pairs of rubbers. Standard with two rubber slings equipped with Dyneema wishbones. Gun has a removable chest loading butt pad and comes with Salvimar&';s stock vertical mount reel.