Pump mag parts

[Gazoo]

I know, there arnt really any, but

This weekend, after playing, went to clean my pump mag, and it appears that the "O" ring/washer that would sit in the wave spring was shredded.

So, just put the bumber back on with the wave spring between that and the back of the bolt, instead of the washer sitting in the spring (which for the life of me is a PIA to put in)

Seems to shoot fine.

Reason for the clean in the first place is that it actually chopped a ball, which it has never done before.

So if anyone knows where or the exact size of said washer / "O" ring, pleas let me know.

Thanks.