Can somebody explain why Feinstein's proposed AWB bans bullet buttons?

[Recursion]

They seem like an awesome idea to me, as I understand them: it means you have to use a screwdriver to change magazines, so reloading takes significantly more time.

What's the issue? This seems like win-win: a modification to a rifle makes it much more difficult to fire a large amount of bullets in a short amount of time. This seems like the sort of thing Feinstein would like. Is the problem that the button makes it technically a fixed magazine weapon? Why would we want to ban that rather than encourage it?

[TheMightyFavog]

1. Well instead of slotting the driver and twisting...

IIRC, you just use a bullet or a similar tool to push the button (Kinda like the recessed button you use on your wristwatch to set the time)

[Duckhunter935]

2. I think this is what is meant by that

another attempt that just a minor change will bypass. I am sure they are all removed in California.

that is another reason the assault weapon ban will fail if imposed again

[ProgressiveProfessor]

3. Because pro gun people like it

Some enterprising person also put out a tool that can be mounted in the bullet button and then the intent is bypassed. Possession of that tool is not illegal, but permanent mounting to the rifle is considered an illegal modification by the CADOJ

[Revanchist]

4. It's because it circumvents the fixed magazine requirement

There was a recent debate over it in the Californian legislature. This story explains why they want to ban the bullet button.

[link:http://sanfrancisco.cbslocal.com/2012/09/25/fallout-in-sacramento-over-bill-to-ban-bullet-button/|

Edit: Looks like I was beaten to the punch while finding a link.

[Recursion]

5. So it's "fixed" but not sufficiently fixed for these purposes?

Still, the concept seems to have some merit; slow down the changing of magazines.

[Revanchist]

6. I believe (not positive because I no longer live in Cali)

that having a removable magazine of any form in addition to certain other features circumvents the state's law.