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Manny Sub Power Roller Head Kit



Manny Sub Power Roller Head Kit

A lot of research and development has gone into the latest version of the Manny Sub Power Roller Head Kit. Simplicity and functionality have been the key focus of this project. In excess of double the power, extra range, penetration, along with no recoil, better manoeuvrability with consistent accuracy and very smooth firing are amongst the best attributes when converting to this kit.

Improved features of the new design:

  • one-piece 40% glass-filled nylon design
  • light-weight carbon-fibre side plates
  • built-in anchor point for a bungee line with a 2.5 mm reel-line guide
  • easy and fast loading system.

These refinements make the Manny Sub Power Roller Head Kit the most popular roller conversion kit available in the market.

The bearings are light-weight and low-friction for maximum power transfer. Made from acetal, with encapsulated glass balls to stop sand and salt-water damage, these bearings are virtually maintenance free. They will ensure many years of trouble-free use.

By eliminating recoil and generating more than double the power for a given barrel length, a Roller Power Head offers greater accuracy, penetration, range and manoeuvrability.

A speargun equipped with the Roller Power Head uses 100% of the barrel length to propel the spear.

Pre-tensioned rubbers and a greater rubber-stretch to spear-weight ratio yield significantly more power. Tests show a speargun with a Roller Power Head and a single 16 mm rubber will outperform a traditional speargun of the same size, with  double 16 mm rubber.

Any Euro/South African speargun with a cylindrical removable muzzle can be converted into a roller speargun with this system.

The MannySub Roller Power Head is available with 14, 16 or 18 mm rubbers, one adapter, three different types of dyneema lines for the installation, stainless fittings and easy- to-follow rigging instructions.

Two wraps of shooting line is recommended when using 16 & 18 mm rubbers.

For optimum results this kit is best suited for spearguns ranging from 80 to 110 cm in size, though it can also work exceptionally well on 120 and 130 cm spearguns.

Additional information


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14 mm, 16 mm, 18 mm


22mm, 24.5mm, 25.5mm, 26mm, 26.5mm, 28.7mm


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