Originally Posted by rembolt
From what I have read about them the model with the silver trigger had non selectable barrels whereas the model with the gold trigger had selectable barrels .
Ah but I owned a 12 ga. BSS with a gold non-selective trigger and a 20 ga. Silver triggered selective. The selector if equipped is indeed at the rear of the triggerguard. If the OP can't find it on his then it just is not so equipped.
My gold triggered non-selective
My silver triggered selective
A silver triggered non-selective
Gold trigger selective
And another silver triggered selective