27 CFR § 478.125 ledger
Columns and structure mirror the regulation exactly, with line numbers preserved and every change hash-chained for tamper-evident inspection.
Inside the ledger → Compliance-first
ATF bound book software that keeps you inspection-ready.
BoundPro is bound book software built around the ATF regulations FFLs live by — a 478.125-aligned A&D ledger, automatic 3310.4 and 3310.12 detection, business-day NICS math, and a one-click compliance pack for inspection day.
Built to the regulation
The compliance work, handled at the source.
Most bound book software stores your records. BoundPro is designed to keep them correct — watching each transaction for the ATF reports you used to track by hand.
3310.4 & 3310.12 detection
Multiple-handgun sales and border-state multiple long-gun sales are flagged automatically, so the reporting forms are never missed.
Compliance detail →Business-day NICS math
BoundPro counts the 3-business-day proceed window the way ATF actually counts it — holiday-aware — and alerts you before it expires.
See NICS tracking →One-click compliance pack
Audit mode assembles the ledger, 4473s, NICS records, and 3310 reports into a single timestamped export for inspection day.
Audit mode →A note on “ATF-approved”
The ATF authorizes electronic records — it doesn’t certify software.
You’ll see plenty of products claim to be “ATF-approved.” The ATF doesn’t certify individual software. What it authorizes, under ATF Ruling 2016-1, is electronic A&D recordkeeping that meets 27 CFR § 478.125. BoundPro is designed to satisfy those requirements — and we’d rather show you exactly how than lean on a badge. Read what “ATF-compliant” actually means for the plain-language version.
FAQ
ATF bound book software questions.
What makes bound book software ATF-compliant?
The software must let you keep a complete Acquisition & Disposition record as defined by 27 CFR § 478.125, and — if kept electronically — meet the conditions of ATF Ruling 2016-1. In practice that means regulation-aligned fields, preserved line numbers, a tamper-evident change history, and records you can produce on demand for inspection. BoundPro is built around all four.
Is BoundPro approved by the ATF?
The ATF does not 'approve' or certify individual software products. What it authorizes is electronic recordkeeping that meets the regulation and Ruling 2016-1. BoundPro is designed to satisfy those requirements, but the FFL holder remains the responsible party for the accuracy and completeness of their records.
Does it handle ATF Form 3310.4 and 3310.12?
Yes. BoundPro automatically flags multiple-handgun sales that require Form 3310.4 and multiple long-gun sales to border-state residents that require Form 3310.12, so those reports are never missed at the counter.
How does it help during an ATF inspection?
Audit mode produces a single, timestamped compliance pack — the ledger PDF, every 4473 in the date range, NICS records, and 3310 reports — while hiding everything an inspector doesn't need. You hand over one file instead of hunting through binders.
Stop dreading inspection day.
14-day free trial. No credit card. No per-transaction fees. Free migration from any competitor.