The Tru-Fire synapse thumb release represents precision-engineered control for the serious archer, featuring a true double-sear mechanism and a fully customizable platform built around a heavy brass handle with an anodized aluminum cover. With modularity in mind, the synapse includes two interchangeable finger extensions-a 3-finger hook and a fourth-finger attachment-allowing shooters to find their ideal grip style. Internal stainless steel components are CNC-milled for exceptionally crisp operation and flawless cocking of the trigger activation lever. The multi-position thumb button offers locked-in adjustability, giving archers the ability to fine-tune both trigger travel and tension. Without requiring disassembly or spring changes, the trigger pressure can be precisely dialed from 1.25 to 20 oz. This high-performance handheld release is available in bold anodized color options-red, green and silver-blending advanced adjustability with standout aesthetics for competitive and field archers alike. Dual sear mechanism delivers reliable, crisp trigger breaks with added safety Precision-milled steel internals offer durability and operational smoothness Adjustable trigger travel and pressure allow complete customization to your shooting style Brass handle is weighted for enhanced control and balance Anodized aluminum cover offers a sleek, durable layer of protection Provides crisp, responsive operation with every use Multi-position thumb post allows comfortable, ergonomic hand placement Includes a durable cord loop for easy hanging or attachment