YHM has a 20" barrel with no muzzle threads for $150. With handloads mine will stay right at 1" groups at 100 yards for 10 shots. I've seen them on sale for $112 at times.
I recently found the barrel OP was looking for made by Ballistic Advantage. Monmouth Reloading was carrying them for a great deal. I picked up a Midlength Govt profile 4150 barrel and a SS Midlength SPR profile. Haven't shot them yet but they both look great. Paid $110 for the 4150 and $148...