IOR 8x56mm questions.
Just bought a used Saiga .308 to see if I like shooting rifles or if I should stick to handguns, and it came with a nondescript optic since it was rattlecanned all over, I started cleaning it so i removed the scope from the rail and started stripping the horrid paintjob, and it revealed a "IOR" marking underneath, unfortunately while passing the rag it seemed to rattle a bit and while looking close, the posterior lenses came out with very little force applied, no apparent damage to the lenses themselves but a quick googling only confused me more with the sealed nitrogen filling (?), the recoil slamming and breaking the lenses, etc.
Is it fixable? What's the price it's worth spending to have it repaired?
Is it possible the aluminium (?) ring that keeps the press fitting in just worn out and owes to be replaced but nothing else?
Complete noob, I'm here to learn or be pointed towards the correct sub, thanks in advance.
Also, opinions on what I've bought (500€) and what should be replaced/thrown away are welcomed.