Just want to make sure...

[tankarian]

...I don't give the wrong answer.
This friend asked me if after Jan 1st he keeps his bullet button AR15 (rifle not registered and not modified to comply) disassembled in two separated upper and lower parts, is he OK from a legal standpoint.
What should I tell him?

[boopiejones]

I think that is technically correct but I would take it a step further and remove the pistol grip and maybe even the adjustable stock as well. That way the lower doesn’t have any evil features.

[Oldmandan]

Bullet button doesn’t matter, if its not assembled its not a gun... or aw

But does he trust others around him to not assemble it?

[Barang]

Put a cable lock through the magwell.

[Quiet]

Just want to make sure...
...I don't give the wrong answer.
This friend asked me if after Jan 1st he keeps his bullet button AR15 (rifle not registered and not modified to comply) disassembled in two separated upper and lower parts, is he OK from a legal standpoint.
What should I tell him?

Starting 01-01-2017, a semi-auto centerfire rifle with a "bullet button" style magazine lock and restricted features is considered an assault weapon. [PC 30515(a)(1) & (b)]

It is illegal to import, make, advertise for sale, transfer, transport, or possess an assault weapon in CA. [PC 30600(a) & 30605(a)]

If you legally acquired a semi-auto centerfire rifle with a "bullet button" style magazine lock and restricted features from 2001-2016, then you are granted an exemption for possessing it until 07-01-2018. [PC 30680]

If the firearm is disassembled into parts, then it no longer meets the definition of an assault weapon.
It is prudent to store or transport those parts in seperate containers or locations.
^This is due to previous CA court cases involving "broken" assault weapons and "contructive possession" of assault weapons.