Q: We just received a call from the ATF to check on a multiple same Form 3310. The agent informed us that we were incorrect by putting “Multi” for the caliber – even though that is exactly how the receiver is imprinted. We were under the impression that we were supposed to take the Logbook information directly from the receiver, since the upper can be easily exchanged for additional calibers. We have multiple long gun models that are imprinted with “Multi” or “Multi-Cal”. Sometimes the barrel has a specific caliber imprinted, and sometimes it may not. Can someone please clarify?
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