micromatic

Hello guys, I got my hands into a Micromatic valve, but it's without the apropriate conection tip for extraction, anyone knows if this black piece works alone or is it missing something? Thanks in advance...

4 MicroMatic 304SS faucets for sale 2 are brand new, the other 2 have about 1 keg through them. Price: 100 local pickup or 110 shipped anywhere in the lower 48 states.