HT/RG Pretensioning Attachment

HT/RG Pretensioning Hook - Sigalsub

The Sigalsub Pretensioning Pin  is the original component designed for the Roller Speargun (RG) and Inverter (HT) propulsion systems of Sigalsub Nemesis series spearguns. A small precision accessory, essential for proper band hooking and pretensioning on high-performance spearguns.

Function and Compatibility

The pin replaces the pin that locks the barrel to the handle, creating the attachment point for the pretensioned bands of the roller or inverter system. Compatible with Nemesis HT (Inverter system) and Nemesis RG (Roller Speargun system) models, it allows the pair of bands to be hooked securely and precisely during the pre-loading stage, ensuring shot stability and repeatability.

Technical Specifications

• Application: Roller Speargun (RG) and Inverter (HT) systems
• Compatibility: Sigalsub Nemesis HT, Nemesis RG spearguns and their Carbon versions
• Function: pretensioning pin for hooking lower bands
• Material: stainless steel
• Production: Made in Italy

Why It Is Important in the Roller Speargun/Inverter System

In spearguns with a Roller Speargun and Inverter system, band pretensioning is a critical stage of loading. This pin allows the first pair of bands to be hooked directly to the barrel, starting the loading sequence correctly and minimizing effort in the subsequent stages. The result is a more powerful, accurate shot with reduced recoil.

Original Sigalsub Spare Part

Original Sigalsub component, an Italian benchmark brand for spearfishing, known for its attention to detail, quality materials, and manufacturing precision. Ideal as a spare part or for setting up commercial spearguns to be converted to a roller/inverter configuration, to be paired with the RG or HT muzzle.