Need help identifying parts!

So yesterday I jumped on the opportunity to pick up a box of random parts for a good price. Problem is, after going through the box, I have no idea what some of these are worth, or even what some of these things are, so I need yalls help. Most of the box was full of AK and saiga stuff, so I have a feeling these things are related, but I still can't figure out what these are.

1. Solved! .223 Saiga mag adapter!


2. No clue.


3. Maybe a pistol grip adapter?


4. No clue.


4. Some kind of rubber butt pad? Don't know what the two pieces are for.


5. The plate is padded on the back side and is cut for the stud. No idea though.


6. No clue.


7. Looks like an AK mag, but the follower is too short and there's a spacer on the front inside of the mag.


8. Solved! Saiga stock!



9. Saiga .308 mag? If so, what make?



10. It's a holster, but for what?



11. Glock Holster? What's the brand?



Thanks for any and all help!

Oh okay, thanks for the help! And I definitely plan on selling everything, just want to figure out what it all is so I can price it first.