Ode to Tuco
Did no one notice the hurried re-enactment of the famous scene from The Good, The Bad and The Ugly where Tuco goes into a gun shop, takes apart several Colt 1851's and somehow is able to magically assemble a revolver better than the hand fitted Colt? It was a much sillier and more contrived version. Colt barrels don't go on Remington frames and it wouldn't have solved his problem anyway.
Otherwise a pretty good shoot `em up movie. All the story died with the first one.