The PRP allows for adjustment based on shooter preference. From the ability to transition from target to target easily to full lock down for maximum stability and hold on target capability. The PRP can be preset to the exact tension required and then used time after time without having to make any adjustments. With the Picatinny / 1913 compatible Quick lock Cam mount, a weapon can be attached or detached in seconds. No compromise in quality of workmanship and materials. All components are 100% USA made.