Summary:

Dark Side is the newest air gun with a vacuum system. The barrel is 100% carbon fiber. The compact design and the perfect balance in the water stem from the barrel construction and the use of T300 Carbon Fiber. The green line a long the top of the barrel helps with aiming. Dark side comes with: lightened high fluidity piston, Sensitive trigger, acid green line release, safety lock, the ergonomic handle is made from glass loaded nylon, power regulator (85 cm - 115 cm), automatic side line release mechanism, barrel ø13mm, and a 7mm shaft. Reel optional.

Description:

In a perfect Star Wars style, the Dark Side is born exactly when the latest episode of the most famous science fiction saga is launched worldwide. 

Even though the latest born of the pneumatic spearguns by Salvimar is not a science fiction product, it is surely a very technologically advanced solution, spearhead of the speargun product line of the Company of Casarza Ligure.

The Dark Side is a pneumatic speargun designed in three lenghts, 55, 85 e 115, with muzzler using the "Vuoto" system, 7.0 mm Pacific Air shaft and optional reel. The measures indicated by Salvimar refer to the distance between the muzzler and the point of the docking of the shaft.  

Just as the Predathor Vuoto, the Dark Side offers the "Vuoto" technology that, eliminating the water column in front of the piston, permits an incredibly high exit speed of the shaft, without having to load the speargun with excessive air pressure. This determines a much easier loading, even with a 13 mm diameter barrel. The base pressure set by Salvimar is 18-20 Bar, adapt to a 7 mm shaft. The value can be brought to 24 Bar for an 8 mm shaft (which weighs more or less 80 grams more than the 7 mm), while it does not make much sense to go higher with pressures for a 7 mm shaft.

For a more visual metaphor, imagine shooting a toothpick with a very high force; it's not efficient, because there isn't enough weight to fight the forces of air resistance and inertia. The same applies for the 7 mm shaft against water. The Vuoto technology also offers an important weight reduction due to the absence of the water column in the barrel, a key aspect to improve balancing of the pneumatic speargun. 

The Predathor and the Dark side share the same handle. The exclusive part of this speargun is the barrel: manufactured in carbon fiber, an ultra-resistant and light material. This barrel improves one of the critical aspects of the pneumatic spearguns, weight and balancing, which had been already improved with the "Vuoto" system. Generally, the weight of the barrel determines a pneumatic speargun's vertical downforce, usually hard to balance. Now, with the carbon fiber solution, weight has been reduced from the Predathor Vuoto by 8%, obtaining an optimally balanced speargun. 

The internals on the Dark Side have also been upgraded, with a light weight low friction piston, adjustable sensitive trigger, lateral line release mechanism and safety system in Salvimar acid green color. Lets look at these internals in greater detail.

The piston is designed with a geometry that creates a camera between two o-rings, which is filled with lubricating oil and grease, highly reducing friction and so increasing shot speed. Weight reduction of the piston also contributes to increasing shot efficiency.  

The line release system, is an additional step forward to optimizing the pneumatic speargun, that usually has this system below, in front of the hilt (the protection profile to the trigger). The lateral solution optimizes brandishing and avoids the line getting stuck to rocks and weeds on the sea floor. But there's more; the system is made of a wheel with four wings that work as line holders. In such a way the system is always ready and needs no re-positioning after every shot, as with other pneumatic spearguns. 

The trigger has a special adjusting system that through a screw regulates millimetrically the stroke.