We took a standard 8-shot 500A and cut the end of the barrel and barrel lug off. We installed a KA-1212BR via hidden weld and turned the collar smooth on the lathe. We then put the lug and stub in a jig on the mill and cut the radius for the lug to match the 1.124" OD of the KA-1212BR. The lug was then silversoldered to the KA-1212BR at the appropriate distance and the whole ass'y was blasted and parkerized.
EDIT: Sorry if the picture looks like butt, I didn't set up the usual lighting and gear for pic taking so it looks muddy and distorted.
EDIT: Sorry if the picture looks like butt, I didn't set up the usual lighting and gear for pic taking so it looks muddy and distorted.