The APA Gradous bolt knob was designed by gunsmith Robert Gradous of Gradous Rifles, and was designed specifically for standard 5/16 X 24 thread bolt handles. It's very similar in design to the classic APA bolt knob, but it sticks out slightly further to give more leverage on your bolt handle. The original APA knob allows you to run the bolt faster but the new Gradous knob allows you to have a bit more leverage. Original Remington 700 bolt handles will need a gunsmith modification to fit. For Surgeon actions see adapter here.
- Machined from 6061 T6 Aluminum
- 5/16 X 24 thread
- Hard coat anodized
- Made in USA