I'm glad PSA took care of you. I guess they didn't really need the full upper sent back after all?
If you want to repurpose that garbage barrel, you might be able to use it as a billy club for self defense!

It could be a formidable weapon.

I assume since it's 16", "pinned" refers to the gas block pin holes not being drilled?
They make blocks that don't require pinning, mostly for replacing the existing one without having to slide the new one over the muzzle (2-piece design), used by many who cut the A2 FSB off and/or have a pinned & welded muzzle device. They also have single piece blocks that use screws to clamp it on without a pin. Plenty of YT videos on drilling the pin hole in the barrel without messing it up, too.
I free-floated all my builds, mainly because I like the front sight options. Normally the barrel has the A2 FSB installed, and I'm just not a big fan of that sight. Rather have a matched set of Magpul or other brand sights both front and rear.
They say free-floating significantly increases accuracy. I can't confirm that, but the explanation as to why convinced me it's a reasonable thing to factor into the decision.Free-floating also reduces heat. The standard handguard with the heat shield material doesn't let the barrel breathe -- it just protects your hand from the heat build-up. Free-floating offers more ventilation without trapping all that heat.
Plus, with the number of handguards on the market, it's easy to find something that's functional and looks good to you.
Just my 2 cents. I'm partial to the rounded handguards, like the Troy V-TAC Alpha.
