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Our Flagship: A revolutionary Fusion Roller built on a modular platform

The Disco Banana is a composite hybrid roller speargun that is a yardstick in the spearfishing industry. The DB is engineered with a never before seen inverted "fusion"  band layup. This band design is extremely manageable: Easy to draw and load, yet maintains significant power output and range in excess of 25 feet. Our Patent Pending handle design creates an inversion in the band around the barrel of the gun. With use of the additional inverted belly kickerband, the gun has minimal recoil for accurate and precise shots with each pull of the trigger. Some unique features of the DB include carbon fiber 3D printed roller wheels and band anchor, skeletonized composite AR-style handle, custom roller trigger mechanism, composite reel, and more. Did we mention it has iron sights? This speargun has the optional ability to break down for travel: barrels are interchangeable in seconds by disconnecting the bands and pulling the gun apart via a concealed bolt within the band anchor on the handle .

Every aspect of the Disco Banana is uniquely designed in house by Black Reef Co. Made in the USA.


Further Details


The most unique aspect of the DB speargun is the astounding new dual fusion band layup which promotes linear power delivery (LPD described below). By use of our Patent Pending handle with the rear mounted wheels, the rubber bands can be mounted atop the speargun. The rubbers transfer to dyneema which runs the length of the underside of the speargun to the front roller muzzle. When loaded, only dyneema is connected to the shaft (similar to an inverted/de-multiplied speargun). This provides better field of vision of the shaft and increased accuracy. The DB receives even more power output by use of a belly kicker which supercharges the shaft. Inertia, the resistance of motion, is the common problem with roller spearguns. Since the kicker band is connected to the dyneema underneath the gun, the kicker will all but eliminate any shaft lag created by inertia. 

The great benefit to this new design is reduced recoil, snappier shots,  better field of vision and most importantly a massive increase in range capabilities. We essentially simplified the inverted/de-multiplied speargun by removing the pulleys and complicated rigging.  

The Disco Banana can be rigged 3 different ways: Single fusion roller, dual fusion roller, or hybrid roller depending on the diver's preference. 

Single Fusion: Reef hunting

Dual Fusion: Bluewater hunting

Hybrid Roller: Reef & bluewater hunting



Otherwise known as LPD, the concept of linear power delivery is the idea of having power equally distributed with a constant force across a distance. 

What is linear power delivery and how does it apply to spearguns? Linear power can be seen when more rubber and preload are fitted onto a speargun. This concoction allows for the same pull force throughout the duration of the speargun from trigger mechanism to the end of the muzzle.

So what are the benefits? Essentially, linear power allows for a speargun to be significantly more powerful with the same maximum force of load. This concept revolves around the idea that the band force at the muzzle is not significantly more than the band force at the trigger mechanism when a speargun is loaded. To exemplify LPD, the two graphs below portray the concept of linear power delivery. Figure I below represents a standard speargun. Figure II represents the Black Reef Spearguns with LPD. The red outline is the overall volume of power, which dictates the performance of the speargun. 


Figure `I


Figure II



New Addition



 twin barrel travel roller

The twin barrel "Dead Man's Switch" speargun moves & tracks effortlessly through the water. The speargun shaft has such minimal contact with the track such that friction is almost nonexistent. The design allows the shaft to "freefloat" with 3 support points. The engineering behind this concept is inspired by the free floating barrel designs seen in the most accurate rifles in the world in the firearms industry. It's the shaft that truly matters for precision and accuracy. Horizontal alignment of the roller wheels in tandem with an optimized shaft design has proven to be the perfect concoction for an effective roller speargun. Made in the USA.


Further Details


The Dead Man's Switch utilizes a hybrid band layup: The band layout is similar to a single roller with an added belly kicker. This is a two stage loading system which allows the band stretch to be split into two power outputs. The benefits? Two power levels. A single load for medium power to shoot fish at close range. And a double load for maximum power. With a two stage loading system, the power output will always be more than a single loading system since you can achieve higher band stretch while requiring less effort to load. But isn't a two stage band more time consuming to load vs a single stage? We argue that is false. Because it is far easier to load two medium bands at a faster rate than to struggle with a single high powered band that requires more focus, technique, and energy to load. The two stage roller is king.



New Addition

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©2018 by Black Reef Company