Turns out that the older model 686s "2 years ago and prior" have the hammer/firing pin together so they didnt have this noise "so im told" I wonder why they came up with the new design of a flat hammer smacking the firing pin, I actually like the older design better
I have an older 686-4. It has "the noise" it is the ejector rod spring sliding back and forth. It's no biggie. Both my GP100 3" a& 6" does it also