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When Does a Shotgun Become Section 1 in the UK? Capacity, Certificates, and Common Traps

Shotgun Shooting 22 May 2026 By Ashley Marshall

A practical guide to when a shotgun falls into Section 1 in the UK, how magazine capacity works, and what certificate holders need to avoid getting wrong.

When Does a Shotgun Become Section 1 in the UK? Capacity, Certificates, and Common Traps

If you are wondering whether a shotgun is still a normal shotgun certificate gun or has crossed into firearm certificate territory, the key issue is usually capacity. In UK law, a shotgun stops being an ordinary Section 2 shotgun when it no longer fits the statutory definition in the Firearms Act 1968. That matters because the certificate you need, the conditions you may face, and the way you can use the gun can all change at once.

Quick Answer

A shotgun becomes Section 1 in the UK when it falls outside the ordinary shotgun definition, most commonly because its magazine can hold more than two cartridges or because its configuration no longer matches the Section 2 rules. Once that happens, you need a firearm certificate, not a shotgun certificate, and you should not buy, alter, or possess the gun on the assumption that the old rules still apply.

What does the law say a Section 2 shotgun is?

The starting point is section 1(3)(a) of the Firearms Act 1968. It says an ordinary shotgun is a smooth-bore gun with a barrel of at least 24 inches, no barrel over two inches in diameter, and either no magazine or a non-detachable magazine incapable of holding more than two cartridges.

That wording is the dividing line. If the gun no longer fits it, it is not the kind of shotgun that sits outside Section 1. In practical terms, that is why capacity, magazine type, and overall configuration matter so much.

When does a shotgun become Section 1 in the UK?

A shotgun becomes Section 1 when it no longer meets that Section 2 definition. The most common example is a semi-automatic or pump-action shotgun with a magazine capable of holding more than two cartridges.

The Home Office Guide on Firearms Licensing Law explains that repeating shotguns with a magazine capacity in excess of two cartridges are controlled under Section 1. That is why a high-capacity semi-auto used for practical shotgun or certain pest control roles is dealt with very differently from the average clay or game gun.

Why does magazine capacity matter so much?

Magazine capacity matters because Parliament wrote it directly into the definition. This is not just club etiquette or insurer preference. It is part of the statutory test.

If the magazine is incapable of holding more than two cartridges, the gun may still qualify as a Section 2 shotgun. If it is capable of holding more than two, the gun moves into Section 1 territory unless another prohibition applies.

Does the chamber count as part of the magazine?

The legal wording focuses on the magazine, not the total number of rounds the gun can hold including one in the chamber. That is why shooters often talk about a Section 2 semi-auto as a 2+1 gun. The useful habit is to check the actual magazine capacity and not rely on sales shorthand.

What about detachable magazines?

The statutory wording also refers to a non-detachable magazine. If a gun has a detachable magazine, you should not assume it can be treated as Section 2. In practice, that sort of configuration usually needs to be considered against Section 1 rules and confirmed with your licensing department before purchase or use.

What certificate do you need for a Section 1 shotgun?

You need a firearm certificate. That means the gun should be specifically authorised on your FAC, with a recognised good reason and suitable certificate conditions.

This is a stricter regime than the shotgun certificate system. With a Section 1 shotgun, police will want to understand why you need that particular type of gun and where it will be used. Practical shotgun competition, pest control, and certain range activities are the common examples.

What are the common situations where shooters get this wrong?

The most common mistake is assuming that any smooth-bore shoulder gun is automatically a shotgun certificate item. It is not. Capacity and configuration can change the legal class completely.

Can you convert a shotgun between Section 2 and Section 1?

Sometimes, yes, but this is not a casual DIY matter. The Firearms Act includes specific wording about adapted magazines and approved marking and certification. If a gun has been adapted to meet the lower-capacity definition, the work and proof of that adaptation matter.

The safe approach is to involve a competent registered firearms dealer or gunsmith and to speak to your licensing unit before any change. If you alter capacity first and ask questions later, you may already have created a legal problem.

Can you use a Section 1 shotgun for live quarry or pest control?

Sometimes, but the answer depends on both firearms law and wildlife law. BASC notes in its guidance on semi-automatic shotguns and rifles for live quarry shooting that high-capacity semi-automatics can be used for certain mammalian quarry and for specified pest bird control under the relevant general licences, but not for all wild bird shooting.

That distinction catches people out. A Section 1 shotgun may be lawful to possess, yet still be unsuitable or unlawful for the species or activity you had in mind. Always check both your certificate conditions and the wildlife rules that apply in your part of the UK.

How common are shotgun certificates, and why does that context matter?

Home Office statistics for the year ending 31 March 2024 recorded 495,798 shotgun certificates and 147,364 firearm certificates on issue in England and Wales. Most shooters therefore deal with the standard shotgun certificate system, not the more tightly controlled Section 1 route.

That wider context matters because most advice you hear at a clay ground or in a game shooting setting is aimed at Section 2 guns. Once you move into Section 1 shotgun territory, you need to stop relying on general chat and start checking the exact legal classification and conditions.

How can you stay compliant if you are considering a Section 1 shotgun?

The safest path is simple: identify the exact model, confirm the magazine specification in writing, and speak to your police licensing team before money changes hands. If you need the gun for practical shotgun or a specialist use, make sure your good reason is clear and documented.

What should certificate holders remember most?

The legal class of a shotgun is not decided by what it looks like. It is decided by the statutory definition. If capacity or configuration moves the gun outside the Section 2 wording, you are into Section 1 rules whether that is convenient or not.

That is why it is worth checking before you buy, before you modify, and before you turn up at a ground or permission expecting ordinary shotgun certificate rules to apply.

Key Takeaways

Frequently Asked Questions

What makes a shotgun Section 1 in the UK?

A shotgun becomes Section 1 if it falls outside the ordinary shotgun definition in the Firearms Act 1968. In day-to-day terms, that usually means the gun has a magazine capable of holding more than two cartridges or a configuration that does not meet the Section 2 wording.

Can I own a Section 1 shotgun on a shotgun certificate?

No. You need a firearm certificate with authority for that specific gun. A shotgun certificate only covers guns that remain within the ordinary Section 2 definition.

Does a detachable magazine make a shotgun Section 1?

It very often will, because the statutory wording refers to a non-detachable magazine incapable of holding more than two cartridges. If detachable magazines are involved, get written confirmation before treating the gun as Section 2.

How many cartridges can a Section 2 semi-automatic shotgun hold?

Its magazine must be incapable of holding more than two cartridges. Shooters often call that 2+1 because one round may also be chambered, but the legal test is the magazine itself.

Can I use a Section 1 shotgun for clay shooting?

Only if your FAC conditions allow it and the venue accepts it. Many clay grounds are set up around ordinary Section 2 shotguns and may not want high-capacity guns in routine use.

Can I extend my magazine tube later?

Not safely from a legal point of view unless you already have the right authority and the work is done properly. Extending capacity first and sorting the paperwork later is exactly the wrong way round.

Are pump-action shotguns always Section 1?

No. Pump-action shotguns can be Section 2 if they still meet the statutory definition, including the magazine limit. Others are Section 1 because of capacity or design.

Can I use a Section 1 shotgun for pest birds?

Potentially, but only within the limits of wildlife law, the relevant general licence, and your FAC conditions. BASC guidance is useful here because the rules for birds and mammals are not identical.

Should I ask my licensing department before buying one?

Yes. That short phone call or email can save a great deal of trouble. It helps confirm good reason, likely conditions, and whether the exact gun is being described accurately by the seller.

Frequently Asked Questions

What makes a shotgun Section 1 in the UK?

A shotgun becomes Section 1 if it does not meet the Section 2 definition in the Firearms Act 1968. The usual trigger is magazine capacity, because a smooth-bore gun with a non-detachable magazine capable of holding more than two cartridges no longer fits the ordinary shotgun definition.

Can I own a Section 1 shotgun on a shotgun certificate?

No. A Section 1 shotgun requires a firearm certificate with authority for that specific gun and its use. A shotgun certificate is only suitable for guns that remain within the Section 2 definition.

Does a detachable magazine make a shotgun Section 1?

In many cases, yes, because the statutory definition refers to having no magazine or a non-detachable magazine incapable of holding more than two cartridges. If the gun falls outside that definition, it should be treated as Section 1 unless specialist advice confirms otherwise.

How many cartridges can a Section 2 semi-automatic shotgun hold?

To remain a Section 2 shotgun, the gun must have either no magazine or a non-detachable magazine incapable of holding more than two cartridges. With one in the chamber, that usually means a practical 2+1 arrangement, but the statutory test is about magazine capacity rather than marketing language.

Can I use a high-capacity Section 1 shotgun for clay shooting?

Only if your firearm certificate conditions allow that use and the venue permits it. Many Section 1 shotguns are authorised for practical shotgun or pest control rather than ordinary clay ground use.

Can I use a Section 1 shotgun for birds or wildfowl?

Not in the same way as an ordinary Section 2 semi-automatic. BASC notes that wild birds generally cannot be taken with a semi-automatic firearm whose magazine can hold more than two rounds, except where a relevant general licence applies to specified pest species.

What happens if I extend a shotgun magazine without authority?

You risk possessing a Section 1 firearm without the correct authority, which is a serious criminal offence. Do not alter capacity until your firearm certificate authority, gunsmith work, and any required certification are in place.

Do pump-action shotguns always need a firearm certificate?

Not always. Some pump-action shotguns can be held on a shotgun certificate if they still meet the statutory shotgun definition, including the two-cartridge magazine limit. Others fall into Section 1 because of capacity or configuration.

Should I ask my police licensing unit before buying a Section 1 shotgun?

Yes. That is the sensible route. Your licensing department can confirm likely certificate wording, suitable good reason, and whether your intended use matches the conditions they are prepared to grant.

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