How do I do a physical inventory count at a gun shop?

A gun shop physical inventory count involves scanning or manually entering every serialized firearm on hand and cross-referencing against your A&D book to find discrepancies — firearms present but not recorded, or A&D entries with no corresponding firearm. This process should be done at least annually and before any ATF inspection. A POS with a built-in reconciliation tool makes this process far faster than manual counting.