Glock carbines/Chasis questions

[JumperXCB]

Aside from the mags, which one here is CA Legal?

P-IX+

https://www.recovertactical.com/cdn-cgi/image/width=768,height=512,fit=crop,quality=80,format=auto,onerror=redirect,metadata=none/wp-content/uploads/2023/01/PIXblack2.jpg

or

Meta Tactical

https://images.app.goo.gl/on4gTFuTk9AjEmxY9

For Glocks

[SkyHawk]

Neither are CA legal

[JumperXCB]

Neither are CA legal

For the Chassis, what factors are needed for it to be legal?

[Quiet]

Aside from the mags, which one here is CA Legal?

P-IX+

https://www.recovertactical.com/cdn-cgi/image/width=768,height=512,fit=crop,quality=80,format=auto,onerror=redirect,metadata=none/wp-content/uploads/2023/01/PIXblack2.jpg

or

Meta Tactical

https://images.app.goo.gl/on4gTFuTk9AjEmxY9

For Glocks

Neither are CA legal

For the Chassis, what factors are needed for it to be legal?

The Recover Tactical (top link) is considered a SBR under Federal and CA laws.
In order to be CA legal, it requires BATFE approval for a SBR and CA DOJ Dangerous Weapons Permit for SBR.
Mere possession of the chassis and an unattached pistol that can utilize it, is still considered possession of an illegal SBR.

The Meta Tactical (bottom link) is considered an assault weapon under CA laws.
In order to be CA legal, it must be configured so that it does not meet CA's definition of an assault weapon.
In addition, because of CA SBR laws, once it is made into a rifle, it can not be made back into a handgun because doing so will cause it to be an illegal SBR (weapon made from a rifle).