Does a muzzle attachment that isn't permanently attached count towards OAL? Does a piece of string tied to the charging handle count towards OAL? Of course not, because these items are not part of the firearm but rather items temporarily attached to the firearm, much like the sig brace. Common sense says it doesn't count towards OAL.
Nothing that is not permanently attached to the firearm is counted in OAL EXCEPT for a stock on a SBR.
way off. Common sense isn't involved here.
Theres conflicting letters on muzzle devices it seems, so I removed that
Just like a stock which can be removed with the pull of the switch.