I live in CA and have a FAB-10 receiver.  I need to know who makes the best 10 round magazines and/or 20/30 round magazine bodies and will sell them to California.  Hi-cap magazine *parts* are legal in California, as long as they are not a completely assembled magazine.  The act of turning it into a hi-cap magazine _IS_ illegal and I do not plan to do this.  I need to cut the magazine about 1 1/2 inches below the magazine catch.  Basically any magazine that functions flawlessly and is the same as a USGI/LE magazine from 1 1/2" below the magazine catch on up will do fine.  Teflon prefered.  I was looking at Bushmaster's 10 rounders.  They look good, and I'm going to be "destroying" it for all intents outside the FAB-10, but it looks like it may work for what I need.  Anyone have experience with these magazines?  Recommendations anyone?  Thank you.

Sorry, I wrote this quickly before I had to run out the door, needed an edit for clarity.