Amazon.com : Rowe Tactical Bolt Knob 5/16"-24 - Aluminum - Black Anodized Hard Coat - for Remington 700, Howa, Savage, Winchester M70 and All Bolt Handles Threaded in Standard 5/16"-24 RT-BLKANO-BK-F :
Mountain Tactical Bolt Knob Pineapple Tikka T3 T3x Aluminum Black
Amazon.com: Generic Drop On Bolt Action Knob Extension Handle for Remington 700 Bolt Action Tactical Version Remington 700 Bolt Action NOT Included Black : Sports & Outdoors
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Amazon.com : Rowe Tactical Bolt Knob 5/16"-24 Stainless Steel - Diamond Knurl Black PVD Coated - for Remington 700, Howa, Savage, Winchester M70 and All Bolt Handles Threaded in Standard 5/16"-24 : Sports & Outdoors
Pure Precision Tactical Bolt Knob | Slim Profile | Red Hawk Rifles