Occasionally we produce a unit that doesn't meet our mile-high standards. When that happens, we pull the unit from production, cut it in half, mark the serial number as scrap and move it to the recycle bin - but some of those units go on to serve a higher purpose.
Many of our tolerances are as tight as .002", which means you may not be able to tell what it was about the Scrap Jack that caused it to become scrap. The bottom line is it wasn't destined to become a Sharps Bros. lower receiver. Perhaps instead it was always meant to be holding your business cards, pens, tools, or simply displayed as a flawed yet still-striking conversation piece.