on some double action the trigger has a 'center',
extends forward if you prime the hammer back manualy,
and spring loaded resist when you squeze the trigger to prime and fire.

at least that was how it use to worked on the s&w 357 and colt 44 i use to have

Your work peaked my intrest in making a revolver, so I started on a S&W .38 M60 Detective Special with a 2 inch barrel.





I've been writting various modeling articals ( specific on using MED ), some articals are focused on making a variety of models so I thought a revolver would make a good subject for one.

It's got alot more work to be done, but I think you noticed, preplaning for animation is important before starting the building so takes a bit of thinking and studying how the item works as you build