3 Ergonomic Tactical Bolt Knob | .22 LR Precision Rifle Accessory
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For small-bore precision shooting and rimfire competitions, speed and smooth bolt manipulation are essential.
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- Printables
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- Other Sports
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- Creative Commons — Attribution
Overview
For small-bore precision shooting and rimfire competitions, speed and smooth bolt manipulation are essential. Standard factory bolt knobs on many .22 LR rifles can be small and difficult to grip under pressure or in cold weather. This 3D-printable bolt knob is an ergonomic upgrade designed to provide a larger surface area and enhanced grip, allowing for faster follow-up shots and more reliable cycling of the action.
Why use this ?
Enhanced Leverage: The enlarged profile provides extra leverage, making the bolt lift feel lighter and smoother.
Superior Grip: Features a textured or oversized design that ensures a positive grip even when wearing gloves or in wet conditions.
Rapid Cycling: Optimized for "bolt-action speed" shooting, where every fraction of a second counts during a course of fire.
Universal Compatibility: Specifically designed for the common bolt handles found on popular .22 LR platforms (check your specific model for fitment).
Technical Specifications & Printing
Since this part is subject to repetitive mechanical stress, the following settings are recommended:
Material: PETG, ABS, or Carbon-Fiber-filled filaments. PETG is excellent for its toughness and impact resistance.
Layer Height: 0.12mm to 0.16mm for a smooth, comfortable feel in the palm of your hand.
Walls/Perimeters: 5 to 6 wall loops to ensure the mounting area is solid and can withstand constant cycling.
Infill: 50% to 100% (Gyroid) to provide weight and maximum structural integrity.
Mounting: Designed for either a "snap-on" friction fit (if using TPU/flexible material) or secured with a set-screw/epoxy (if using rigid materials).
Thread: maybe you need to adapt the thread Metric are M6x1 Remington bolt knobs are threaded 5/16″-24
How to Use
Ensure your rifle is unloaded and the chamber is empty.
Slide the printed knob over your existing factory bolt handle.
Depending on the design, secure it using a friction fit or the designated mechanical fastening method.
Practice cycling the bolt while dry-firing to ensure there is no interference with the scope or the stock.
About the Project
Part of the Taka Tech Lab series—bridging the gap between DIY maker culture and professional sports shooting equipment