Your Marlin 49DL trigger has hung up The trigger just stopped working and will not release to strike the firing pin The gun is very clean?

tolerances have been degraded between the firing pin fulcrum and the release. examine pivot-point wear and never exclude the small chance that a single grain of dead powder is between the firing pin and the hammer. reproduction of the original hammer-pin isn't rocket science.....make a template of the original, then add a couple of tenths to the new part.....very nice rifle, and an easy gun to repair!