Tuning Complete disassembly IZH 46M

There are probably a number of them out there but this should get you started:

http://www.pilkguns.com/izh46ex-htm/

I have an old PowerPoint like slide show (from pilkguns I believe) showing step by step disassembly and reassembly instructions but since it is a .exe file I won't attempt to paste it here. This thread below has all the separate pictures from that slideshow:

https://www.gatewaytoairguns.org/GTA/index.php?topic=153388.0 

That link is pretty comprehensive and "should be" all you'll need. Good Luck!