Originally Posted by Glockdude1
I will be more clear. I believe the frame was cut by someone other than Glock.
I think OP is indicating by all the serial numbers matching, the slide is a G19 slide, then the receiver would have to be a different serial number if it was originally a G17 cut down to accept a G19 slide.
All evidence suggests this (photo) is a legit gen 1 Glock 19. Now, the OP has to prove he did not just snap a pic of it, or find one on the internet and claim it is in his possession. So yes, some more photos would indicate the OP is legit.