Is the Mossberg Shockwave legal in Missouri for 2026 owners? Yes, the Mossberg Shockwave is currently legal to own, transport, and fire in Missouri, provided the firearm complies with both federal and state definitions of a pistol or “non‑rifle” shotgun. The key factor is that the Shockwave lacks a shoulder stock and has a barrel length of 18 inches, keeping it out of the National Firearms Act (NFA) classification that would otherwise require a tax stamp. Missouri does not impose additional restrictions on this class of firearm, so owners may possess it without a permit or registration as of 2026.
Federal Classification and Its Impact
The Mossberg Shockwave is marketed as a “firearm” rather than a shotgun because it does not have a stock and its barrel length exceeds the 12‑inch threshold that triggers NFA regulation. The ATF’s 2022 interpretive rule confirmed that firearms meeting these criteria are treated as pistols under the Gun Control Act (GCA) (ATF 2022). Consequently, they are exempt from the NFA’s registration and tax‑stamp requirements, which dramatically simplifies ownership across the United States, including Missouri.
Missouri State Law Overview
Missouri’s statutory framework mirrors federal law for non‑NFA firearms. Revised Statutes Section 571.020 defines a pistol as a firearm designed to be fired with one hand, and the Shockwave fits this description (Mo. Rev. Stat. 2025). No state‑level licensing, registration, or age exception applies beyond the standard requirement that purchasers be at least 18 years old for pistols and 21 for long guns. Open carry of pistols is permitted without a permit, though private property owners may set their own rules (Mo. Rev. Stat. 2025).
Practical Considerations for 2026 Owners
- Transportation: Missouri does not demand a concealed‑carry permit for transporting a pistol. Owners should keep the firearm unloaded and stored in a locked container when traveling in a vehicle, in line with best‑practice recommendations (M.O. Sheriff’s Association, 2024).
- Use Restrictions: The Shockwave may be used at any range that permits pistols. Some hunting areas restrict non‑rifle shotguns, so owners must verify local regulations before using the firearm for hunting.
- Future Legislation: While no pending bills target the Shockwave specifically, ongoing federal discussions about “pistol‑style shotguns” could affect future classification. Missouri legislators have not introduced comparable measures as of the latest 2025 session.
Conclusion
For 2026, Missouri owners can legally possess and use the Mossberg Shockwave without additional state licensing or registration, thanks to its classification as a pistol under both federal and state law. Owners should stay informed about any potential changes in federal guidance, but current statutes provide a clear path for lawful ownership.
FAQ
Can a Missouri resident transport the Shockwave across state lines without a tax stamp?
Yes, because the firearm is not classified as an NFA item, a tax stamp is unnecessary. However, the traveler must comply with the destination state’s laws, which may differ.
Is a concealed‑carry permit required to carry the Shockwave openly in public?
No. Missouri permits open carry of pistols without a permit. The Shockwave must be carried in a manner consistent with a pistol, i.e., without a shoulder stock.
Can a minor legally possess the Shockwave in Missouri?
Federal law sets the minimum age for pistol purchase at 18, and Missouri follows that standard. A minor may possess the firearm under adult supervision but cannot purchase it.
Does the Shockwave qualify for use in Missouri’s concealed‑carry program?
Technically, yes, as it is a pistol. However, most concealed‑carry permits are issued for handguns, and many permit‑issuing authorities may be reluctant to approve a short‑barrel firearm for concealed use.
Will the Shockwave be legal for hunting in Missouri?
Hunting regulations generally limit shotguns to those classified as long guns. Because the Shockwave is a pistol‑style firearm, it is prohibited for most game hunting, though it may be allowed for certain small‑game or pest control scenarios if the specific season permits it.