No_Brakes23 said:
Flash-hiders are "Evil features" in Cali, but comps and brakes are good-to-go. I believe it is not an illegal upper until it is mated to an det-mag lower.
Plus guys who have their lower registered as an AW can legally buy your upper, IIRC.
But I ain't a lawyer.
Flash hiders are only an "evil feature" on a gun with a detachable magazine.
An Assault Weapon by CA law is a semiauto...
centerfire with detachable magazine + any ONE or more of the following:
pistol grip
flash suppressor
folding or collapsible stock
OR less than 30" long, no matter what features
OR with a fixed magazine larger than 10 rounds, no matter what features (.22 tube fed rifles exempted)
If you have a setup that can legally use a pistol grip, it can also use the flash hider.
A Mini-14, for example, is legal as long as it doesn't have a flash hider, a pistol grip or folding stock. Put any one of those things on it, and it's illegal. A "1994 Federal Ban Compliant" AR is still illegal because it has a pistol grip.
Anyway, the upper is okay. It's up to the buyer to assemble the gun in a legal manner. With a fixed magazine, or on a .22 rimfire, or on a bolt action, a flash hider is not an "evil feature." Flash hiders are, themselves, legal to sell. Again, they have to be used in compliance with the law.