The ONLY Adjustable Hair Trigger Attachment Grip for PlayStation 4 Controllers. Trigger King is the leading innovator of performance gaming accessories for PS4. Our patent pending TK Precision Tuning Technology is a world’s first for trigger attachments. Each Trigger can be individually fine tuned to create the most sensitive hair trigger available. Drastically decreases trigger lag while aiming and shooting: No assembly required: Ergonomically designed to increase comfort, decrease hand fatigue and eliminate unwanted Thumb-Quakes.( Thump-Quakes: An unpopular action common to video games in which the video gamer accidentally depresses the thumbstick button, resulting in stabbing at nothing, pointless reloads, spontaneous crouching and untimely deaths).