Starting January 1st, 2026, all retailers selling firearm accessories to California residents will be required to implement new ID verification and attestation requirements.
This new law, California Assembly Bill 1263, was signed into law to address concerns about unlawful firearm manufacturing and ensure that purchasers of firearm accessories and manufacturing equipment are aware of California's firearm manufacturing laws.
The major requirements for retailers include:
These measures are intended to ensure responsible selling practices and inform purchasers about the legal restrictions on firearm manufacturing in California. This FAQ guide provides a high-level overview of the requirements for your business.

CA AB 1263 applies to "firearm industry members" selling certain products to California residents. This includes:
If you sell any of the covered products to customers in California, you are subject to these requirements regardless of where your business is located.
The law covers three main categories of products:
| Category | Examples | |----------|----------| | Unattached Firearm Barrels | Replacement barrels, barrel blanks, barrel kits | | Firearm Accessories | Triggers, stocks, grips, magazines, sights, rails | | Manufacturing Machines | 3D printers, CNC milling machines, lathes capable of manufacturing firearm frames or receivers |
The law specifically targets machines that can be used to manufacture firearm frames, receivers, or other firearm parts. General-purpose 3D printers and CNC machines may be covered if marketed or sold for firearm manufacturing purposes.
Sellers must verify that the purchaser is at least 18 years of age with valid proof of identity before completing the sale. Acceptable forms of identification include:
The verification must confirm both the identity of the purchaser and that they meet the minimum age requirement.
In addition to ID verification, sellers must obtain acknowledgment that the customer has received and understands a notice about unlawful firearm manufacturing in California.
The required notice must inform purchasers that the following activities are generally crimes without a valid license:
Customers must acknowledge receipt and understanding of this notice before the sale can be completed.
Yes, online sellers have the same responsibilities as physical stores. If you ship covered products to California residents, you must:
Self-reported age pop-ups or simple checkboxes are not sufficient to meet the ID verification requirement. Merchants must take reasonable steps to verify customer identity and age.
For online sales, you should use a third-party ID verification service that can:
Below is an example of an ID verification flow you can set up through Real ID to verify age and capture attestation acknowledgment:

Get your free Shopify Flow template to automatically verify and capture attestation for orders shipping to California.
While the law requires verification and attestation, retailers should maintain records of:
These records may be needed to demonstrate compliance during audits or legal proceedings.
CA AB 1263 takes effect on January 1, 2026. Retailers should begin implementing compliance measures well before this date to ensure smooth operations when the law goes into effect.
Real ID provides a complete solution for CA AB 1263 compliance: