Hinge B3 BTPRO Hinge ALL-NEW ON OUR 2024 BTPRO IS THE ADJUSTABLE CLICK SYSTEM. The BTPRO hinge release is one of the most advanced releases in our line, and features a patented micro-adjustable sear system. Simply adjust the sear for more or less travel with the use of a hex key. The BTPRO is a solid brass handle that provides weight and balance for a smooth rotation. It also has all new geometry for leverage that is built in for shot-to-shot repeatability and an auto-return hook for fast and easy release reset. The handle also features our patented star drive system, which allows for a three or four finger shape with multiple positions available. The BTPRO is available in a Brass and Cerakote Brass option. BTPRO features: Patented design Adjustable handle Adjustable click system Knub and pinky included Magnetic auto return hook Patented micro-adjust sear system Available in brass and cerakote brass