GunStack
For Licensed Firearms Dealers

The operating system
for American gun stores.

Point-of-sale, ATF-compliant A&D records, Form 4473 workflows, and state compliance — purpose-built for FFLs, not adapted from a coffee shop POS.

CFR Compliant

27 CFR § 478

State Compliance

All 50 States

Form 4473

Built In

Bound Book

Automated

Platform

Everything a licensed dealer needs.

One system replacing the spreadsheets, paper bound books, and generic POS terminals behind your counter.

Counter-Ready POS

Touch-optimized checkout for the gun counter. NICS status tracking, customer records, split payments, and layaways in one flow.

Automated Bound Book

Every firearm sale auto-records to your A&D book. Corrections create an immutable audit log — never overwriting the original (ATF Condition 2).

Form 4473 Workflow

Full Section A–D wizard with prohibited person questions, NICS result capture, sequential form numbering, and 20-year retention built in.

State Compliance Engine

Automatic waiting periods for CA, WA, CO, and 13 other states. POC transaction capture, permit verification, and age enforcement per state.

Serialized Inventory

Every firearm tracked from acquisition to disposition. Distributor POs, receiving, bound book entries, and cost basis — all connected.

Customer Records

Full buyer profiles with ID, DOB, and purchase history. Pre-fills Form 4473 for repeat customers with ATF Condition 3 attestation prompt.

Compliance-First

Built around 27 CFR § 478.
Not bolted on after the fact.

Every workflow in GunStack was designed with ATF regulations as the starting point — not an afterthought. From the moment a firearm is acquired to the day it's transferred, the paper trail is automatic.

  • Bound book entries created automatically on every sale and acquisition
  • Form 4473 corrections logged per ATF Condition 2, Method A — originals preserved forever
  • Section A pre-fill with ATF Condition 3 attestation warning
  • CSV export in ATF Condition 5 format for inspection readiness
  • State waiting periods, permits, and POC systems enforced at the POS
Acquisition & Disposition RecordExport 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 · 27 CFR § 478.12520-yr retention

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