Pinned, clamp on, set screw, doesn’t really matter if its under a handguard, the port is aligned correctly, and threadlocker is used. I like pinned because its super easy and I almost can’t mess it up when I order a barrel that comes with a pinned block. I also hate tiny allen screws. No rocksett or loctite required with pinned. If I have a barrel with no gas block or dimple, I use a dimple jig with a set screw block because they tend to be low profile. With a pinned FSB, I shave it.
The M4 and M16 used taper pinned at least partly because the front sight base/gas block assembly is exposed, and Joe will inevitably drop his rifle, and/or tinker with anything that has a screw. “Look, Sergeant, I figured out how to clean my gas port!” And some idiot would probably be inspecting gas tubes at weapon turn-in.
This is of course just my opinion.
RLTW
“Your posts will be more accurate and received much better if you form your opinions with less emotion and more objectivity and then express them as if you’re in a discussion with friends, rather than an injured and cornered animal fighting for its life.” -Revolution 9 on the hide
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