Air Arms Broken after market magazine

[johnwoitalla]

I bought this magazine for my Air Arms S410 in 22cal, about 25 years ago. But I don’t know from where. It hasn’t worked for quite some time. Do any of you have experience repairing these? Any suggestions before taking it apart? If I remember correctly, it had rubber belt/ring in it that failed.

 

[starlingassn]

tear it apart and find an oring that fits the groove around the silver cylinder portion.

oring variety packs are cheap at harbor freight