Picture of 2 barrel backs attached, what thread is each?
The red back comes from my (or rather Bobs) Strange shocker, the black back is one I just purchased which is supposed to fit an SFT, but it doesn't fit the Strange.
Looks like the red is shocker and the black is cocker, just checked with mine and they seerm to match up......seems odd that the threads wouldn't be sft on the strange, unless the threads are damaged?