Not to say they don't, but I haven't seen it personally. I'd venture a guess and say that: 1, Law enforcement agencie's evidence folks tend to destroy the frames when needed (fewer frames). 2, The frame is what gets goobered up by improper bbl installation(more frames ruined- less supply). 3, That's where the SN is and fewer folks can sell that portion of the magnificent tool. 4, And, Oh crud, I forgot where I was going there. But anyway, good luck in finding one. You may have to call a lot of gunsmiths, but in the matters of such things persistance pays off.