Why Knot Innovation

Why Knot InnovationWhy Knot InnovationWhy Knot Innovation

Why Knot Innovation

Why Knot InnovationWhy Knot InnovationWhy Knot Innovation
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    Innovative Firearms Solutions

    Innovative Firearms SolutionsInnovative Firearms SolutionsInnovative Firearms Solutions

    Magnetic Attached Brass Catcher for Bolt-ActionRifles

    A man in a hoodie aiming a scoped rifle while resting on a wooden support.

    M-LOK, AI Key Slot, and Chassis Specific mounts Available (See Pricing Section)

    • Our innovative brass catcher was specifically designed for bolt-action rifles.  
    • While designed for bolt action it also works great for AR15/10 platforms.
    • Small footprint ensures no issue when operating the bolt or controls.
    • Magnetic attachment for quick detach/attach for access to ejection port.
    • Tunable in all axis for perfect alignment to ejection port
    • Additional Magnetic Rail Sets available 



    Magnetic Quick Attach and Detach

    • Magnetic attachment
    • Allow for quick attach when ready to shoot and quick detach to show clear
    • Fast  access to ejection port for single feed loading or clearing


    Durability Meets Efficiency

    Constructed with rugged materials that withstand the rigors of outdoor use, our brass catcher features a user-friendly design for quick and easy attachment. The reliable mechanism captures spent cartridges without hindering your shooting performance, offering a practical solution for both training and serious competitions.

    Ambidextrous Support

    Works with right hand and left handed actions

    Flip the side rail and top rail to reverse mounting side

    Compact and Lightweight Design

    Magnetic attachment for quick detach/attach for fast access to ejection port or confined shooting position

    Belt Attachment

    Brass Catcher can be stored magnetically on the M-Lok rail or on the magnetic belt holster.  


    Belt attachment has MOLLE support as well.

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    Pricing

    Disassembled black device with mesh and optical parts on wooden surface.

    M-LOK Brass Catcher Set

    Accuracy International Key Slot Brass Catcher Set

    Accuracy International Key Slot Brass Catcher Set

    • M-LOK Magnetic Attachment Rail Set
    • Hood
    • Mesh Net Basket
    • Belt Attachment 
    • Ambi Design - works with Right and Left handed actions
    • Continental US shipping included

    Order Now

    Accuracy International Key Slot Brass Catcher Set

    Accuracy International Key Slot Brass Catcher Set

    Accuracy International Key Slot Brass Catcher Set

    • AI Key Slot Magnetic Attachment Rail Set
    • Hood
    • Mesh Net Basket
    • Belt Attachment 
    • Post 2014 AI Key Slot system
    • works with ATX ATXC AXSR
    • Ambi Design - works with Right and Left handed actions
    • Continental US shipping included

    Order Now
    Disassembled black device with mesh and optical parts on wooden surface.

    MPA Matrix Pro / Vanquish Brass Catcher Set

    MPA Matrix Pro / Vanquish Brass Catcher Set

    MPA Matrix Pro / Vanquish Brass Catcher Set

    • MPA Matrix/Vanquish Magnetic Attachment Rail Set
    • Hood
    • Mesh Net Basket
    • Belt Attachment 
    • Ambi Design - works with Right and Left handed actions
    • Continental US shipping included

    Order Now
    Disassembled black device with mesh and optical parts on wooden surface.

    Foundation Sampson Brass Catcher Set

    MPA Matrix Pro / Vanquish Brass Catcher Set

    MPA Matrix Pro / Vanquish Brass Catcher Set

    • Sampson Magnetic Attachment Rail Set
    • Hood
    • Mesh Net Basket
    • Belt Attachment 
    • Ambi Design - works with Right and Left handed actions
    • Continental US shipping included

    Order Now

    Firearms and Reloading Accessories for Efficient Shooting

    At Why Knot Innovation, we specialize in designing cutting-edge brass catchers, firearm  and reloading accessories.


    Our mission is to make shooting and reloading easier and more efficient, allowing enthusiasts to focus on what they love: precision shooting and the great outdoors. With a deep understanding of the needs of competitive shoo

    At Why Knot Innovation, we specialize in designing cutting-edge brass catchers, firearm  and reloading accessories.


    Our mission is to make shooting and reloading easier and more efficient, allowing enthusiasts to focus on what they love: precision shooting and the great outdoors. With a deep understanding of the needs of competitive shooters, we pride ourselves on our reliable, proven solutions that keep your shooting running smooth and efficient.

    Frequently Asked Questions

    Common Questions, Answered

    Connect the M-Lok or Key Slot rail to your hand guard.  Ensure that the distance is close enough to align the magnetic mount forward of your ejection port.


    Connect the magnetic brass catcher hood to the mount and adjust the alignment (height, forward/aft and left/right to align to forward opening of ejection port.


    Test with an empty brass in chamber to verify that capture of spent brass is working well.  Look for a smooth ejection pattern capturing brass via the hood and cloth basket.  




    It is compatible with Flat M-Lok rails and Accuracy International Key Slot rails.


    MPA Matrix Pro recessed M-Lok rail support is coming soon... 


    Our brass catchers typically range from $100.00 to $135.00 depending on options.


    Accuracy International are very proud of their key slot bolts which drive the price up a bit for key slot  rail.  


    Cleaning your brass catcher is simple. You can wipe it down with a damp cloth. 


    While it can the primary use case is for higher volume training and competition use.  


    Common use case is for PRS and NRL style training and matches.


    Yes it works great with AR platforms with flat mlok rails


    Innovative Brass Catcher for Bolt-Action Rifles

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    For inquiries about our innovative brass catcher designed for bolt-action rifles, reach out today.


    info@whyknotinnovation.com

    Why Knot Innovation

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