CTK Precision Universal Bolt Knob 5/16"-24 Black

The CTK Precision Universal Bolt Knob upgrade was designed to offer more leverage and easier bolt lift than a factory installed RPR bolt knob. Three ridges, machined onto the outside diameter of the body, allows for a positive grip on the knob while cycling the bolt. Because these ridges are machined, you'll never have to look for a missing O-ring, which could be the case with other bolt knobs. A CNC machined, hard anodized knob designed with functionality and installation ease in mind. The CTK