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Catalyst Arms - Hammerhead Bolt Knob

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The Catalyst Arms Hammerhead Bolt Knob

Upgrade your rifle with the Catalyst Arms Hammerhead Bolt Knob. This oversized aluminum bolt knob allows for better control on each shot. 

Its shape allows easy access and prevents the shooter’s hand from slipping onto the bolt handle. This bolt knob will fit all 5/16-24 bolt handles, allowing it to work for most rifles, including RPR and Christensen Arms. 

This bolt knob comes in black, red and sniper grey. If the Hammerhead isn’t the right fit for you, check out Anarchy Outdoors’ bolt knob collection. We have something for everyone. 

Features & Benefits

  • Fits bolt handles with 5/16-24 TPI 
  • Easy installation
  • Made in the USA
  • Weight: 1.5 oz
  • Dimensions: 1"x1"x2"

Customer Reviews

  • Awesome look

    Posted by Shawn Paul on Apr 12th 2023

    This changes the look on the MPR bolt as well to makes loading rounds in so much easier.

  • Great Bolt Knob

    Posted by Lance Little on Apr 11th 2023

    Excellent bolt knob. Great machining and look!!! I highly recommend!!!

  • Hammerhead Bolt Knob

    Posted by Solid on Mar 11th 2023

    Big and solid with a rough enough texture to ensure my hand or glove does not slip. Highly recommend!

  • bolt knob

    Posted by Bill on Feb 1st 2023

    really big but easy to use.

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