MVD is a specialised design and machining business based in Greece. They use state of the art CNC and laser cutting machinery to build some of the most advanced aftermarket parts for spearguns from around the world. Using the best materials for the job from marine grade stainless steel and titanium, through to carbon fibre and Delrin. Each part is 3D CAD/CAM designed before being perfectly made and tested. MVD is best known for their extensive range of Roller muzzles for the worlds leading gun manufacturers. They have also shown great advances into free spooling reels, inverted roller kits and reverse trigger mechs for Rob Allen guns. Their range will guarantee the best possible performance for your railgun when you need it most.