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Catalyst Arms - Hammerhead Bolt Knob
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Catalyst Arms - Hammerhead Bolt Knob

(3 reviews) Write a Review
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The team at Catalyst Arms has created another game changer following our best selling RPR Mag Release Extension. Our large, 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.



WEIGHT: 1.5 oz

DIMENSIONS: 1"x1"x2"



3 Reviews

  • Hammerhead Heaven

    Posted by Robert Reed on Jan 17th 2019

    A perfect upgrade for function and appearance. I chose the Red to match my mag release extension and safety selector. It is large enough to ease manipulating the bolt but not so large it looks like a tumor hanging off the receiver. It is light enough not to make lifting the handle or holding the gun unbalanced.
    If you’re looking for an upgrade from stock or just looking to replace what you already have you can’t go wrong with this knob.

  • Great looking and functional product

    Posted by Mike on Jul 6th 2018

    Would not hestitate to buy or recommend to anyone. Fit and finish are above par and make the RPR stand out. in addition to looking good it is very functional and provides extra real estate to grab on to

  • Red Bolt knob

    Posted by Richard on Apr 7th 2018

    Easy on fits nice looks great!

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Shipping & Returns

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