Multiple Handgun Sales — When Does ATF Form 3310.4 Apply?

ATF Form 3310.4 — the Report of Multiple Sale or Other Disposition of Pistols and Revolvers — is a reporting requirement that catches many dealers off guard the first time they encounter it. The trigger is simple: if the same buyer purchases two or more pistols or revolvers within five consecutive business days, federal law requires the dealer to file a Form 3310.4 with the ATF and local law enforcement within one business day of the final sale in the sequence.

What Triggers the Requirement

The requirement applies to pistols and revolvers — not to rifles, shotguns, or other long guns. Two handgun purchases by the same buyer within a five-consecutive-business-day window require a report. The count is per buyer, not per transaction — a single transaction involving two handguns triggers the requirement immediately. Two separate transactions within the five-day window also trigger it.

The five-day window uses business days, not calendar days. Weekends and federal holidays don't count. So a purchase on Friday followed by a purchase the following Monday is within the window (one business day apart), but a Friday purchase followed by a purchase the next Friday might not be depending on how many business days fall between them.

Filing Requirements

The Form 3310.4 must be submitted to two recipients: the ATF (to the ATF office serving your state) and the chief law enforcement officer (CLEO) of the jurisdiction in which the sale took place — typically the chief of police or county sheriff. The form must be filed within one business day of the second (or subsequent) handgun sale that triggers the requirement.

Common Mistakes

The most common error is simply not knowing the rule applies. Dealers who are new to high-volume handgun sales or who don't track buyer purchase history may not recognize when the five-day window has been triggered. Implementing a simple system — even a manual log — that flags when the same buyer has purchased a handgun recently is an easy fix.

The second most common error is filing late. The one-business-day filing deadline is strict. A dealer who realizes on day three that they should have filed on day one has already missed the deadline and created a violation. The filing is still required — late is better than never — but the late filing itself is a separate violation.

Relationship to the 4473

The Form 3310.4 is in addition to, not instead of, the Form 4473. Every handgun sale still requires a complete 4473 and NICS check. The 3310.4 is purely a reporting requirement layered on top of the standard transfer process for qualifying multiple-purchase situations.

Long Gun Multiple Sales in Border States

Note that dealers in Arizona, California, New Mexico, and Texas are subject to an additional requirement to report multiple sales of certain semi-automatic rifles. This long-gun reporting requirement has different thresholds and filing procedures than the standard handgun 3310.4 requirement. If you operate in a border state, ensure you understand both requirements.