I will machine off your existing factory Remington 700 bolt knob and thread the stub to 5/16-24 and install new bolt knob in black finish.
You can ship it to me or drop it off usually can be done in 24-48 hours of recieving the bolt.
Cost of bolt knob upgrade is $165.00 this includes all parts and labor. If you ship me your bolt the return shipping is $10.00 Priorty Mail.
Cerikote finish on the bolt can be done at a $50.00 additional cost and 14 day additional lead time.