Stan SX4 Black Aluminum L Thumb Release

The SX4 was engineered to shrink the gap between intention and execution. From the first movement of your shot process to the exact moment the string releases, its new lock system fires with unprecedented speed — precision at the speed of thought. Built for archers who demand repeatability under pressure, its spring-assisted hook minimizes the impact of micro-movements and biases into the same position every shot for dependable performance.

Custom T10 Torx hardware securely locks in thumb post placement, finger position, travel, and tension adjustments without the risk of stripping, while fully adjustable ergonomics allow shooters to fine tune the feel to match their exact preferences. From practice sessions to high-pressure moments, integrated features like the trainer lock and wrist strap compatibility make the SX4 as practical as it is performance driven.

Available in small, medium, large, extra large, and extra extra large sizes — with both small and large aluminum barrel options, and interchangeable 3-finger and 4-finger configurations — the SX4 is built to fit every archer’s hand and shooting style.