The red one is definitely (SFT) Shocker thread (it's a double start thread.) If it fits the Strange, then it means the Strange is SFT thread.
The black one looks like a cocker thread to me, as everyone else has said. Especially when shown next to the Proto barrel, looks to be the same thread.
EDIT: On second thoughts, if the black barrel definitely doesn't fit something the Proto fits, it's possible that what you've got yourself is a Spyder thread.