Originally Posted by Skans
Question 2: Are these older government profile barrels harder to find; or is there anything that makes them obsolete? I've already decided that I'm going to free-float the barrel and replace the old-style front sight tower with a low-profile gas block.
I don't have anything useful to add, but wanted to note that this seems like a very useful configuration. I was looking for a barrel like yours and a cheap free float tube to make something reasonably light and reasonably accurate and that could be carried comfortably.
I was in the midst of my search for parts when the unpleasantness in Connecticut hit. I am not inclined to try to put anything together in the current environment, but I think your idea is great.