Hi Squint, Hey, you didn't say if the bolt was un-numbered or the wrong number, as not all 1920 bolts were numbered?? Un-numbered breechblocks are not all that tough to find... and perhaps you could at least make it correct?? BTW, what did you use to stain the grips with.. they look great and probably helped it a bit... nice gun... best to you, til...lat'r...GT