Originally Posted by dtmccray
Wait it's illegal to own a 30 round mag in Ca? I thought it was one of those where you could have one but couldn't have it in your gun.
It is illegal to import, manufacture/assemble, or to offer for sale or sell/give/lend (to a non-exempt person).
Mere possesion OR USE is not illegal, unless it is a fixed-magazine semiautomatic centerfire rifle (that makes it an assault weapon).
My wife has a 92FS and a few 15rd magazines that we have had since before the ban. Perfectly legal.
It IS currently legal to block/limit a 30rd body to hold only 10 rounds.
The law defines a large capacity magazine as an "ammunition feeding device capable of feeding more than 10 rounds"
You can legally take a parts kit (or for that matter, a legally-possessed high-cap) and limit it's capacity to 10rds. It is then exempt from the sale/gift/lend restrictions, and may be used in a fixed-magazine rifle. There is nothing in the law that prohibits this. A lot of people throw around a lot of made-up "laws" about not only California, but about guns in general... they heard it at a gun shop, or from a cop, or from a friend. In general, cops and gun shops are the worst place to learn about gun laws.
On simply "blocking", the law does require "permanence".
This is a matter of personal comfort... what do YOU believe the arresting officer and DA are going to consider "permanent"? What do you believe the jury will consider "permanent"? How much money do you have to defend yourself?
There are companies that make blocks that can be inserted into the spring to limit 20 and 30rd bodies to 10rds, but simply inserting one and snapping on the floorplate would certainly not be considered "permanent".
Personally, I am comfortable with rivets, because their removal required the use of a drill. Technically, with the application of power tools, virtually nothing is truly "permanent"... but my bodies can not readily be converted back to 30rd bodies.
Some are not comfortable with just the rivets, and instead prefer to use a block (a paint stirrer works fine) coupled with epoxying the floorplate on.
The same methods are being used to get the Springfield XDm into the state. It is not on the roster, so we have to import it with an extended barrel (10.5" OAL) and in a single-shot form. The magazines are a secondary problem, as they are not made in 10rd, so we import the parts disassembled, epoxy spacers to the inside of the body that prevents the follower from going below halfway, and voila... we have 10rd magazines for the XDm.