# air guns - high muzzle velocity — Postal shipping restrictions by item category

For air guns - high muzzle velocity, carrier is USPS; restriction type is restricted; scope is domestic mail; conditions is Air guns with muzzle velocity of 400 or more feet per second must include Adult Signature service; mailers responsible for compliance with all applicable state and local regulations, recorded from its source on 2026-08-04.

- **Item category:** air guns - high muzzle velocity _(unconfirmed — we could not tie this to the quote below)_
- **Carrier:** USPS _(our reading, not quoted from the source)_
- **Restriction type:** restricted _(our reading, not quoted from the source)_
- **Scope:** domestic mail _(our reading, not quoted from the source)_
- **Conditions:** Air guns with muzzle velocity of 400 or more feet per second must include Adult Signature service; mailers responsible for compliance with all applicable state and local regulations _(unconfirmed — we could not tie this to the quote below)_

## What the source says

> Shipments containing air guns with a muzzle velocity of 400 or more feet per second (fps) must include an Adult Signature service per DMM 503.8.

## Source

- https://pe.usps.com/text/pub52/pub52c4_010.htm

Last verified: 2026-08-04. Review by: 2027-08-04.
Part of [Postal shipping restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).