Hello,
I have a Beretta S58s O/U shotgun which had started to double discharge. When opened only one single wire spring was found to be be broken. When this was replaced, the recoil inertia block allowed for selection ok. However there seems to be something missing as the inertia block sear does not reset.I have some photos but I am not able to add them here due to not having the appropriate permission.
If any one can help me with an exploded diagram or photo of the missing link!. It would enable me to make the part.
I will send the photos I have to anyone who requires them.

My email is c.ocon@btinternet.com

Best regards to you all,
Chris. (ocon47)

Send it to JJ at Champlins, he's sort it out for you.

Thanks for your reply, I am in the UK but was given a brief description by the gunsmith at GMK the Berreta Dealers over here. This enabled me to make the missing part.