ATF Form 3310.4 and 3310.12, explained for FFLs

Two of the easiest compliance items to miss at the counter are the multiple-sale reports: ATF Form 3310.4 and ATF Form 3310.12. They’re easy to miss precisely because they don’t come up on a normal single-firearm transfer — they only trigger under specific conditions, often days apart, and the clock is short. Here’s how each one works.

ATF Form 3310.4 — multiple handgun sales

Form 3310.4 is the Report of Multiple Sale or Other Disposition of Pistols and Revolvers. You must file it whenever you sell or otherwise dispose of two or more handguns to the same unlicensed person at one time, or during any five consecutive business days.

The details that catch people out:

• It’s two or more handguns, not three. Two pistols to the same buyer on Monday and there’s a report due.
• The five-business-day window is a rolling window. A handgun sold Monday and another to the same buyer Thursday still counts.
• The report is due to ATF (and, where applicable, state or local authorities) by the close of business on the day of the sale that completes the multiple.

ATF Form 3310.12 — multiple long gun sales in border states

Form 3310.12 is the Report of Multiple Sale or Other Disposition of Certain Rifles. It applies to FFLs in the Southwest border states — Arizona, California, New Mexico, and Texas — and covers the sale of two or more semi-automatic rifles capable of accepting a detachable magazine and chambered for a cartridge greater than .22 caliber, to the same unlicensed person, within five consecutive business days.

This one is narrower but sneakier, because the trigger depends on the firearm’s configuration and the buyer’s pattern and your location. It’s exactly the kind of rule that’s hard to police by memory on a busy Saturday.

Why these get missed

Both reports depend on cross-transaction awareness. A single sale looks fine in isolation; the obligation only appears when you connect it to another sale, sometimes to a different clerk, sometimes days earlier. A paper bound book has no way to notice the pattern, and neither does software that just stores rows.

How BoundPro catches them automatically

BoundPro watches every disposition against these rules in real time:

• When a second qualifying handgun goes to the same buyer inside the window, it flags the 3310.4 obligation before you finish the transfer.
• For FFLs in AZ, CA, NM, and TX, it evaluates rifle configuration and buyer history to flag the 3310.12 obligation the moment it’s triggered.
• Both reports are then included in your audit-mode compliance pack, so the paper trail is already assembled when ATF asks.

This is one of the concrete reasons we built ATF bound book software around the regulations rather than bolting compliance on afterward. The report you never forget is the one your software surfaces for you.

This article is general information, not legal advice. Always confirm current requirements against the ATF forms and your state’s rules — the FFL holder remains responsible for filing.