Parts commonality, if any b/t 930,500/590.

[jaxman7]

I am relatively new to Mossbergs in general. I came from a Remington background so pardon my ignorance. My question is are there any parts that interchange between the 930 series and 500 series? I know the safety is but I am mainly concerned with internal components such as the hammer and extractor springs. I would assume so but assuming leads to wasted money too often. Thanks for the help.

-Jax

 

[Rossignol]

I'm sure there are a couple of people on here who know. I was kinda wondering the same thing recently, but mainly if the stocks are the same.

 

[tgw]

the Weaver rail #417 fits both my 590A1 and my 930.

 

[Rossignol]

the Weaver rail #417 fits both my 590A1 and my 930.

Is that a reciever mount rail?