A brass thumb activated button release that uses the very same care for as the Fulkrum with the similar exact affect point. The Abyss also uses the similar Lever Alignment System (LAS) technology as the Fulkrum. The Abyss comes with a unique three stage tension adjustment system, so all archers will also be accommodated with their specific feel in trigger weight. Also a simple locking shuttle adjustment screw, permits you to set the shuttle in your preference quickly and easily. An adjustable thumb trigger comes standard at the Abyss, allowing a where you wish to have it feel.