Catalyst Arms Hammerhead Bolt Knob

Catalyst Arms oversized solid aluminum knob is designed to provide a secure grip on the bolt handle in any and all conditions. Features a contoured "waist" for pushing bolt knob up with your trigger finger. FITS BOLT HANDLES WITH 5/16-24 TPI Ruger Precision Rifle (Gen I, II, III, & Magnum) Ruger Precision Rimfire E