Short-Barreled Shotgun Law

Just when Emily Carter thought she had identified every unusual firearm in her grandfather’s collection, she found one more surprise.

Stored in the back of a locked cabinet was a compact shotgun that looked significantly shorter than the hunting shotguns she remembered seeing throughout her childhood.

Attached to the firearm was another set of ATF paperwork.

The paperwork identified the firearm as a Short-Barreled Shotgun, commonly known as an SBS.

Emily had already learned about suppressors, gun trusts, and short-barreled rifles. Now she was discovering that federal law regulates certain shotguns in much the same way.

What Is a Short-Barreled Shotgun?

Under federal law, a short-barreled shotgun generally includes:

A shotgun having a barrel less than 18 inches in length; or
A shotgun having an overall length below the federal threshold.

Because SBS firearms are regulated under the National Firearms Act, they require registration and ATF approval.

Like suppressors and short-barreled rifles, ownership generally requires compliance with federal law.

If you are new to NFA firearms, begin with our NFA Tax Stamp Guide.

Why Are SBS Firearms Regulated?

The National Firearms Act of 1934 specifically included short-barreled shotguns among its regulated firearm categories.

Congress believed certain compact firearms warranted additional oversight and imposed registration, taxation, and transfer requirements.

Today, lawful ownership remains possible, but only through compliance with applicable federal regulations.

SBS vs. SBR

Many firearm owners confuse short-barreled rifles and short-barreled shotguns.

Although both are regulated under the NFA, they are distinct categories.

Short-Barreled Rifle (SBR)

Rifle platform
Generally less than 16-inch barrel
Requires NFA registration

Learn more in our Short-Barreled Rifle Law Guide.

Short-Barreled Shotgun (SBS)

Shotgun platform
Generally less than 18-inch barrel
Requires NFA registration

Understanding the distinction is important because different firearm types are treated differently under federal law.

How Are SBS Firearms Acquired?

Most SBS firearms are acquired through one of two methods:

Form 4 Transfer

Purchasing an already-manufactured SBS generally requires ATF Form 4 approval.

Learn more in our Form 4 Attorney Guide.

Form 1 Manufacture

Creating an SBS from an existing shotgun generally requires approval through ATF Form 1 before modification occurs.

Learn more in our Form 1 Attorney Guide.

Gun Trust Ownership of SBS Firearms

As Emily continued reviewing her grandfather’s records, she noticed the SBS was listed alongside other NFA firearms in the family trust.

Like suppressors and SBRs, SBS firearms are commonly owned through gun trusts.

Trust ownership may assist with:

Succession planning
Trustee management
Estate administration
Long-term ownership

For more information, visit our Gun Trust Guide.

Common SBS Mistakes

Common issues include:

Unapproved modifications
Incorrect barrel measurements
Improper trust administration
Failure to obtain approval
Recordkeeping mistakes

Because NFA firearms are heavily regulated, careful planning is important.

Emily’s Next Discovery

The more Emily reviewed her grandfather’s collection, the more she realized he was fascinated by historically significant firearms.

One item in particular stood out.

Unlike the suppressor, SBR, or SBS, this firearm had a capability most Americans only see in movies.

It was a legally registered machine gun.

Continue reading our guide on Machine Gun Law.

For legal assistance regarding SBS firearms, tax stamps, and NFA compliance, visit FLGunLaw’s NFA Tax Stamp Attorney page.