New York restricts magazine capacity to 10 rounds maximum

You cannot ship magazines larger than 10 rounds into New York. The rest of the United States has no federal magazine capacity limit, which means a 15-round or 30-round magazine that is lawful to sell everywhere else becomes illegal the moment it crosses into New York. This page covers what that means for your order routing, which products you block by state, what happens when you get it wrong, and how to build the control that keeps you compliant. The rule is narrow—it affects only magazines and similar devices, not other firearms accessories.

What this means for your store

If you sell magazines, you must refuse orders shipping to New York addresses for any magazine larger than 10 rounds. Orders for compliant 10-round magazines can proceed. You cannot simply note this in a spreadsheet—the control must live in your shipping settings so that a customer in New York cannot reach checkout with a restricted product. If you ship a 15-round magazine to a New York customer, you have exposed yourself to liability and created the exact scenario underwriters flag: a merchant shipping products into a jurisdiction where they are prohibited. This is not a legal judgment on the product itself, which is lawful in most of the country—it is a control failure that looks like you are either ignoring state law or do not know where you are shipping.

The control that actually enforces it

Build a shipping profile or checkout block by product and destination state. In Shopify, this lives in your shipping settings or as a product-level restriction—flag each magazine with its capacity in a metafield (for example, 'magazine_capacity: 15'), then block checkout if that product is bound for New York and capacity exceeds 10. You can also set product availability by market if you use Shopify Markets. Do not handle this with a manual note: if it exists only in someone's head or a Slack message, it will fail when you scale, when you hire, or when you are tired. The control must be automated so that it works even when you do not think about it.

Why an underwriter cares

Payment underwriters scrutinize shipping patterns. Shipping a prohibited product into a restricted state is a compliance red flag independent of the product category itself. An acquirer reviewing your store will ask whether you have state-level controls, and the answer they want to see is not 'we are careful' but 'the system blocks it'. If your logs show shipments of large-capacity magazines into New York, or if you cannot document the control that prevents it, an underwriter will treat that as evidence of weak compliance infrastructure—even if the specific transaction was a mistake. They want to see the barrier in code, not the promise to be more careful next time.

Frequently asked

Can I sell any magazines to customers in New York?

Yes, but only magazines with a capacity of 10 rounds or fewer. You can sell 10-round magazines into New York without restriction. Any magazine larger than 10 rounds cannot be shipped there, regardless of which state you operate in or where the magazine is manufactured.

What happens if I accidentally ship a high-capacity magazine to New York?

You have exposed yourself to potential liability and created a compliance red flag for payment processors. Underwriters view this as a system failure, not an accident. The remedy is to build an automated block so it cannot happen again—a shipping profile, product flag, or market availability setting that prevents checkout for restricted products bound for New York.

Does this rule affect other firearms accessories like scopes, grips or ammunition?

No. The restriction applies only to magazines and similar devices that hold ammunition. Other firearms accessories can be shipped to New York without this limit. Always confirm the capacity rating of any magazine before shipment, and treat any item labeled as a magazine with the 10-round rule.