[reciever cover popping off]

I bought it from an individual

[reciever cover popping off]

Hi everyone,

 

I'm new to shotguns and new to saigas so please be forwarned...

 

I recently purchased a saiga 12 gauge and on about the 3rd shot out of my second mag the reciever cover popped off.

 

I thought it might be a fluke so I put it back on and fired some more. However, it continues to pop off every 3rd or 4th shot.

 

I really like this shotgun and I don't want to scrap it. So, is there any way to fix this, and how do I do it?

 

Any info would be greatly appreciated. Just let me know if there's another thread that thoroughly addresses this subject.

 

Thanks.