J&J Stingray Barrel?

[Glovebox Operator]

Is this for a Stingray II?
https://www.ebay.com/itm/33667717452...Bk9SR4iNsePnZw

[The Inflicted]

Is this for a Stingray II?
https://www.ebay.com/itm/336677174523?_skw=paintball&itmmeta=01KWZ3C8RVBCD0 KPMHSGRCV3Z7&hash=item4e6385fcfb:g:C~oAAeSwK4BqTVO N&itmprp=enc%3AAQALAAAA4GfYFPkwiKCW4ZNSs2u11xCoW ji 6tk%2BmXIPBxbey6n%2Fkuva90--hYSKm0kfXX6ennREepHgqq8jilMnQrPU9gWdi8fP81RLnAV4wk H8Uj22UnoF2cPfuVY9v5vLtedZwE%2BYP%2FHsRfZbwLgZ4tmy 4fM0XDHZGTdxk0MQmlJsjY6%2FEq3qpOKmcS95VjHqptjU9R8o ZB7qTmiUv8qGYZjVtRZoY5u2TL7%2BPd0UWlg7BObTT0PdtT8r jhrxqdfN1fVZxzj9CEb4nnD%2BIXd6dFh5oPbHWSFcnEq01dzK cpMLGBbJZ%7Ctkp%3ABk9SR4iNsePnZw

Sure looks like it.
A lot of Stingray barrels have the two big grooves near the breech for the big thick O-rings to allow the barrel to fit both a Stingray II and the original. I had a custom-made J&J barrel that was made like that and would fit either version of the gun.

This one lacks the O-ring grooves so I would think it's only meant to fit the Stingray II.

Also, J&J didn't start using that logo until well after the Stingray 1 was out of production and only the II was common.

I bet one could make it fit a Stingray 1 by wrapping a huge amount of electrical tape around the breech end.

[shooter311]

This is from Doc's Machine Shop's Barrel Thread Guide (https://docsmachine.com/tech/barrelguide.html). The length seems to be off a little bit, but I'm not sure if the tolerances on a Stingray are that specific.