Just did this with a left/left savage action. My FFL did the paper work to ATF regs,it came from the factory custom shop as "un-designated," to be used as a pistol build. If I go by there I'll get a copy and see what he included.

The custom shop at savage knew what to send for ffl, very helpful people. The ffl called and confirmed with TWO district offices just to make sure his paper work was correct.