Green extractor O-ring

[Soysauceandbatteries]

A long time ago, AAC made bolt carrier groups that contained a green extractor o-ring.

Does anyone know if you could buy these today? If so, where?

Thanks in advance.

[Soysauceandbatteries]

Found. Thanks to 300Blk (RS) for the info!

For those who need it, he said these are it.

https://www.theoringstore.com/store/ind ... ts_id=5387