Originally Posted by
Jimbo45
You need a jig to properly set up and align the FSB with the index pin on the barrel extension, and a jig to reem out holes that are already there, and reem larger holes, and use larger pins, to end up with a properly aligned and set up FSB.
The point is, it IS possible, but not by most folks, working out of their garage, using a bench vice. And to be done properly, by a shop, new parts are used....that is different than trying to match up a barrel and FSB, that has already been reemed and are mismatched.