Had a new 431 44 SPL revolver years agao. 4" barrel in stainless. Had a timing issue and sent it back to Taurus. I really don't know if they put the new generation internals in it or just gave it one hell of a polish and action job. With the cheap "throw away" guns and the high $$$ pieces I've owned.... without a doubt, the rework 431 I regret most of all for letting it slide through my fingers.....