I bought Mbsk01's AK74 (InRange build), which is AWB-compliant, ie. welded muzzle brake. Unfortunately, this one isn't pinned and welded over (I've removed several of those), but "puddle welded". I've exchanged a couple of e-mails with Troy, and he mentioned that he drilled a hole in the bottom of the brake and filled in/welded over the hole once it was on the rifle. He also said that I could drill that out and remove the brake.
Now I didn't want to annoy him by continuously sending him e-mails, but I'm still a little confused. In a blind pin installation, only the pin mechanically locks the brake to the barrel and the weld only fills in the hole. You don't really have to get close to the threads (on the barrel/FSB) to remove the pin and break the mechanical lock. With this puddle welding method though, I'm assuming that the metal in the brake has fused with the metal of the FSB, so I'm not quite sure how much damage I would do to the FSB to remove the welded area.
The only thing I can think of is drilling out the welded area with a drill bit slightly larger than the weld itself. It would cut into the threads of the FSB before the welded area is removed, but it shouldn't damage the threads any more than necessary.
Has anyone here removed one of these brakes to offer some advice?
Thanks,
Z