Anybody here ever built your own integral suppressor on a form 1? I’m giving thought to a suppressor/barrel combo No longer than 18” for either a .458 SOCOM or .450 BM on a used 700 action with 8 inches worth of baffles in it. My question is, has anyone tried this and if so, does it constitute 1or 2 form 1s? To me it’s no different than a 10” barrel and an 8” flash hider welded on but I could see the ATF considering it a 10” SBR plus An 8” suppressor and that is the opinion that matters.