The TruFire Synapse Black Thumb Release is a high-performance thumb release with true double-sear operation. Featuring a weighted brass handle with an anodized aluminum cover, it offers a broad range of adjustments for a customized fit. The internal stainless steel components are precision milled for crisp operation and flawless trigger activation. The multi-position thumb post allows for lockable adjustments of trigger travel and tension, with trigger pressure adjustable from 1.25 to 20 ounces. The Synapse release includes two finger extensions for a three- or four-finger configuration, making it ideal for target archers and bowhunters seeking precision and comfort. TruFire Synapse Black Thumb Release T21201