I have 2 HK94's that I have recently sent form 1's off to SBR. Both will be going to TSC for conversions, one to a MP5SD & the other a MP5F. Is it possible to somehow list these with the ATF as a pistol until the form 1's clear so I can go ahead and send them to TSC or am I pretty much stuck waiting until the ATF forms clear?

Thx