I had the same problem. The gun needs to be loosen up a little.
This my first saiga, but i have a lot of Russian arms. They are designed to run loosey goosey. They work best when they have had several 100 rounds in them.
But i don't have that kind of time or money.
This what i did-
1.I field stripped my gun.
2.Then I took some fine metal polishing compound, used to polish Aluminum wheels, and coated the places where metal hits metal, the bolt , hammer where it hits the bolt, rails, etc . basically you are lubing the gun with the paste.
3.I reassembled the gun.
4.Th