New ATF Rule in Effect — The “engaged in the business” final rule expands compliance obligations for all licensed dealers. See how GunStack keeps you covered →

GunStack
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A free digital bound book
for every FFL in America.

ATF-compliant A&D record keeping, Form 4473 workflow, and serialized inventory — built from the ground up for licensed gun dealers. No paper. No spreadsheets. No setup fee.

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ATF Regulation

27 CFR § 478

Record Keeping

A&D Bound Book

Required Form

Form 4473

Retention

20 Years

Acquisition & Disposition Record — 27 CFR § 478.125Export CSV
#FirearmSerialAcquiredStatus
041Glock 19 Gen5BFX4421Mar 12IN STOCK
042S&W M&P Shield PlusHNE4821Mar 14DISPOSED
043Sig Sauer P36566B221904Mar 18IN STOCK
044Daniel Defense DDM4DDM4V702281Mar 22IN STOCK
045Ruger GP100RPG1109283Mar 29DISPOSED
45 total entries · auto-created on every acquisition & disposition20-yr retention

Digital Bound Book

ATF-compliant A&D record keeping.
Built in. Automatic.

Every acquisition and disposition is logged automatically the moment it happens. No manual entry. No paper. Inspection-ready on day one.

A&D entries created automatically on every acquisition and disposition — nothing to remember
Corrections logged per ATF Condition 2, Method A — originals preserved forever, never deleted
CSV export in ATF Condition 5 format — hand it to the inspector in seconds
20-year retention built in as required by 27 CFR § 478.129
New 'engaged in the business' rule compliant — all required transfers tracked
Section A pre-fill for repeat buyers with ATF Condition 3 attestation warning
State-by-state waiting periods, permits, and POC systems enforced automatically
Every entry tied to a serial number, acquisition source, and disposition record

Most software records that an entry was changed. GunStack records which field changed, what it changed from, and who changed it — so your records are readable to you, not just technically sufficient for an inspection.

Also Included

Form 4473 & Serialized Inventory

Form 4473

Firearms Transaction Record

  • Section A–D wizard — guided workflow, no blank boxes
  • NICS status captured directly: Proceed, Delay, Deny
  • Prohibited person questions enforced at the counter
  • Repeat buyer pre-fill with Condition 3 attestation warning
  • Permanently stored, never editable after submission

Serialized Inventory

Every firearm, acquisition to disposition

  • Every firearm tracked by serial number from PO receipt to final sale
  • Bound book entries created automatically — no double entry
  • Cost basis maintained across PO, transfer, and consignment
  • Non-serialized inventory too: ammo, accessories, apparel
  • Instant lookup by serial, SKU, or make/model

The Full Platform

Everything else your store needs.

Start with the bound book. The full platform — POS, procurement, payments, customers — is coming to founding stores.

Point of Sale

Touch-optimized checkout. Firearms, ammo, accessories in one transaction. NICS status tied to every sale. Form 4473 generated automatically.

Procurement

Search RSR Group, Lipseys, Davidson's, Sports South in one view. Submit POs directly. Auto-create bound book entries on receive.

Founding stores

Payments

2A-committed processing built into GunStack. Redundant acquiring relationships — if one bank exits, your payments don't.

Customers & Reports

ID capture, purchase history, Form 4473 pre-fill for repeat buyers. Daily sales, margin by category, inventory turn.

Pricing

Bound Book

Free

For every FFL. No credit card.

  • Digital A&D bound book
  • Form 4473 workflow
  • Serialized inventory
  • 20-year retention
  • CSV export, inspection-ready
Get started

Get Early Access

Get your digital bound book.

Join the waitlist. We'll get you set up with the digital bound book and keep you posted on the full platform launch.

No credit card required. No sales pitch. Just the product.