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ZAI / Bighorn Arms Bolt Knob is a quality knob with many different styles for your choosing.
Pick between 7 different bolt knob designs: Diamond, Helical Diamond, Teardrop, Competition, Tactical, Spiral Extended and Spiral.
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Learn about ZAI/Bighorn Arms
Diamond, Helical Diamond, Spiral, Extended Spiral, Competition, Tactical, Teardrop