Nunrich has all kinds of barrels listed, all out of stock of course. I was surprised to see .410 barrels choked IC and Mod. Looks possible that the trigger guards were originally cast pot metal as I've read, but they also list a shotgun-style replacement like the one on mine. Hard to say what it was originally, and I like the one I've got just fine.
I looked up the 219 in Sharpe's book, which was published the same year the gun came out. He was very positive about it. List price was less than $15 in 1938, and under $18 for a combination. Other than the barrels, the guns are identical. Surprisingly, the barrel and locking lug are forged in one piece.
Altogether a nice little piece, one I much prefer to an H&R or (gack!) one of those Rossi things.