Trigger spring? The sear on a lock usually is what provides any "spring" as when the lock is cocked, that is what takes up the "slack" - usually the trigger is either one assempley with the trigger being pinned into the trigger plate or it is pinned into the trigger mortise through the stock - sometimes with a separate trigger plate or no trigger plate at all.
I'd be curious to know where some of you are coming up with a "trigger spring"? This isn't a "single set" trigger and it sure isn't a "double set" trigger.
The lock looks like it is off of an old breechloading shotgun. Is the hammer nose recessed for the nipple or does it just strike against the nipple?
This has all the appearances of being a "marriage of parts". Not a bad job though.
If a pair of '51 Navies were good enough for Billy Hickok, then a single Navy on my right hip is good enough for me . . . besides . . . I'm probably only half as good as he was anyways. Hiram's Rangers Badge #63