Gen II Tactical Bolt Knob is direct replacement for all Surgeon Rifles bolts.
With the included 5/16"-24 hardened stud, it is a direct replacement for all Defiance Tenacity and Ruckus bolts.
Precision CNC machined from Stainless Steel.
Knobs shipped with matte black chrome sulphide finish.
KMW Tactical Bolt Knob - Defiance Tenacity, Ruckus and Surgeon