Installation of a new or used FSB on your barrel. Installing a new FSB on a used pre-drilled barrel is no problem. If you want your canted FSB realigned, this service will cover that as well. If you are sending a used/pre-drilled FSB, we will have to use oversized taper pins which will not protrude as much as the originals. See pics below for comparison.
If you have a canted FSB from the factory and want it straightened out, select the service for your FSB install.