**DISCONTINUED** See the the BTS Roller Head Maximize the power of your railgun by converting it to a roller speargun. This kit can add about 40cm of power to your railgun. For example if you shoot a 70cm traditional railgun...after this conversion your speargun will have the power of a traditional 110cm speargun. At the same time, the pulley system will decrease recoil to almost zero! Design and implementation using state of the art technology CAD/CAM CNC code. High precision engineered to strict specifications Metal parts made of inox steel type 316L marine High endurance, low friction Industrial Acetal body 30% larger than "Compact" in all dimensions Real time tested Different types for almost every conventional speargun in the market MVD Roller Pro G2- Low profile inox arches- Full pretension capable (up to 100%)- Increased lateral agility- Accepts 16-19mm rubber- Same total weight as its predecessor!
