Neptonics Tuna Speargun Trigger Mechanism

Overview

The Neptonics Tuna Speargun Trigger Mechanism is a heavy-duty trigger assembly for large bluewater spearguns using high band loads. This trigger mechanism can hold up to six bands and 1400 pounds of force. Trusted by leading gun builders, this trigger mechanism is the most secure on the market. Shaft sizes include 5/15 in, 9/32 in, 11/32 in, and 3/8 in.

Installation and engagement

The mechanism operates with very tight internal clearances, guaranteeing an accurate release when properly installed. The rounded housing ends reduce pocket-routing work because the ends do not need to be squared. A dedicated installation jig can be used to locate the retaining pins, line-release slot, and line-release pin.