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Big Bertha Bolt Knob

(28 reviews) Write a Review
$47.99 - $49.99
SKU:
BB-BK
UPC:
791617485662
Brand

Description

Big Bertha Bolt Knob by Anarchy Outdoors

If you have large hands, the Big Bertha is the bolt knob for you. This bolt knob allows our hulk shooters to grasp their bolt handle and move it with ease. 

The hourglass shape of this bolt knob increases dexterity for the shooter, and the diamond-shaped rivets increase grip. Those that like this design, but prefer a smaller bolt handle, should check out our Little Bertha Bolt Knob

We offer this bolt knob in matte black, red and polished titanium. Any of which would make a great addition to your rig. All you need to do is attach it to one of our many aftermarket bolt handles

Download Bolt Knob Instructions

Big Bertha Bolt Knob Features:

  • Diameter: 0.945 inches

  • Length: 1.753 inches

  • The design allows for easy handling

  • Included rivets allow for better grip

  • Thread Pitch 5/16x24

  • Compatible with all custom Anarchy Outdoors handle products. 

  • Made in the USA

*All of our standard thread knobs will fit on the Christensen Arms Standard Rifles 

Customer Reviews

  • Big Bertha
    5

    Posted by Dave on Apr 23rd 2026

    I first bought the clamp on Big Bertha for my Weatherby Vanguard S2 rifle. I liked it so much that a month later I purchased the Big Bertha "Threaded" bolt knob for my Fierce Carbon Rival which has a Remington 700 cloned action, but with a 70°degree bolt throw The 70° and 60° degree bolt throw while nice, they do come with the cost of a heavier bolt lift throw when cocking/cycling of the bolt. It is slightly harder when cycling the bolt than the standard Remington 700, 90° degree bolt throw. The oversized Big Bertha bolt knob, gives you substantiately more leverage to cycle your bolt action bolt much easier and more efficiently. It's like putting a cheater pipe on your wrench handle. It's just easier and smoother to cycle your rifle bolt action. The only downside for Some Remington 700 cloned actions, is that when on safe, the Big Bertha, might make it a little easier to accidentally catch you bolt on a bush and have your action open on you while it is on safe.

    Other than that small issue to be aware of, I highly recommend the Big Bertha oversized bolt knob.

  • Quality
    5

    Posted by Rod on Oct 8th 2025

    ALL of my Ruger bolt action rifles are Anarchy upgraded with every product they sell. This is a quality company and people. making quality products.

  • big bertha bolt knob
    5

    Posted by John on Aug 23rd 2025

    Much better feel than stock one. Looks great too. This is a must have .

  • Big Bertha.
    5

    Posted by GARM on Jun 25th 2025

    Perfect fit and feel for my large hands. Easy to install. Knurling is perfect, not too rough, not too smooth.

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