So in my 10/22 now a CA evil gun?

I recently found this site and just in time. Hopefully someone knowledgeable about the mess that is Kalifornia law can tell me in plain english ( I'm also trying to decifer the online CA regs.)

I recently got interested in target shooting again after many years. I dug my old 10/22 out of storage. However from reading I think this might now be an 'evil' gun here. I thought it might be pre-ban or that a .22 wouldn't be considered an 'assault rifle' but saw another message about these not really qualifying. This is the current configuration:

I bought used back in the 80's, the serial # starts with 120-

1) Just after I got it I put on a folding stock, a Black Warrior brand with a pistol grip.
2) I put on what looks like a muzzle brake, at least it looks similar to the current double brakes, slips around the sides of the front site, locked on with a set screw. middle section has 6 holes in two rows of 3, all near the top. The very front has 5 slots, there is not a slot on the very bottom of that section.
3) I put on a hand guard that goes on top of the barrel around the rear site area.

4) I also have several Ramline 25 shot banana clips and one of the 50 shot clips that looks like a big teardrop.

So it I took this to the target range am I a felon in Kalifornia? If so can I take the items off and keep in a box or is just possesion bad. Do I have to trash everything?

Thanks for any advice.