i get blamed for everything!! heheh!

i haven't used the adapter parts, but the same threading and legal rules apply.

a guide arbor is very helpful for keeping the muzzle threads papallel to the bore axis.

thread a piece of brass rod stock with the same die you will use to cut the muzzle threads and turn 2-3" of the brass rod's length down so that it slip fits into the bbl. bore. instant arbor!

silver soldering is easy. a small oxy-acetylene torch with a brazing tip, some 1100° solder and and paste flux will do a nice, clean job. preheat the adapter and brake in your oven.

touch up the burned/cooked finish with cold black oxide solution from brownells while the parts are still warm to hot. use a scratch pad to apply the oxy-black.