Sorry to hear about that. First call S&W. I'd tell you about parts they've sent me for free after I managed to damage them myself (and clearly told S&W I had done so, and tried to pay, but they would not let me). Like the free replacement 22A grips because I, .., well that's too embarrassing, let's not go there.
I assume the ORC is the OR but compliant? So I ASSUME that your gas block is the same as my original I removed when I switched to YHM Hooded front sight/gas block. I know we discussed in e-mail, I hate to part with any AR parts
, but most likely I will never use the old gas block. It is slightly discolored, as I overheated it to remove it (at which point it almost fell off on it's own).
If you can't get a new one for free, or a very reasonable price, PM me your name and address, I'll send it to you my old one.