I guess another vendor bites the dust. Unable to find out anything about status of BNM or Sergio.
I really do like the breech kit, the bolt probe not being long enough was an issue for me as well. I made a new by using a section of a cutoff .22 barrel, piano wire and brass hobby tubing. Was not hard to make and worked super well. Sergio's kit really gave new (quiet and multi-shot) life to the Crosman product line. Even though a pellet wouldn't completely clear the TP, at normal fps it didn't seem to matter much. I imagine at higher power it made a big difference.
Oh well, water under the bridge it seems.