Yeah, I'm with Matt on this one. I think there was only ever 1 hero gun.
The idea that there were three heroes was stated in the context that the other 2 steyr recievers were "foundry cast" anyhow, so the seriel number would be the same, if the detail survived the foundry casting process that is.
I just don't see that.
It's not like Deckard's scenes involved rapid gun fire, or running gun fights. I've seen I-robot used as an example, and man, Will Smith shot a hell of a lot more bullets that Deckard. He needed to have 5 or 6 heroes loaded and ready for the sake of multiple takes and angles. Ford, not so much. He only ever fired one shot at a time any way.
Does anyone know what the oddball screw in the sideplate is from? I've been searching since Karl posted his pics initially, and I think it's part of a distance sight, or scope mount screw. My buddy Ted who is a gun smith thinks it's an interior part from an old BSA sight.
I recognize it, but for the life of me, can't place the SOB. I thought it was probably from a rear pop up sight, maybe an enfield. :unsure