Yes 4 welds, or a half-circle weld/solder job is OK in the ATF's eyes.
Or blind-pin it. That would eliminate the need to expose the barrel to welding heat.
I'd weld over the blind pin anyway (or JB weld it) to make it flush and undetectable.
Or blind-pin it. That would eliminate the need to expose the barrel to welding heat.
I'd weld over the blind pin anyway (or JB weld it) to make it flush and undetectable.