No. In the United Kingdom a rifle scope, red dot sight, holographic sight, magnifier, prism scope or torch is not a firearm in law, so none of them goes on a certificate and none needs a licence to buy, own or sell. What is certificated is the gun you fit the optic to.
The reasons are worth knowing, because they show exactly where the line sits between kit you can simply buy and kit that needs paperwork. They also show where the use of a sight or a lamp is regulated even though buying one is not.
Key takeaways
- Section 57(1) of the Firearms Act 1968 defines a firearm as a lethal barrelled weapon, a prohibited weapon or a relevant component part. Sights and torches are none of these.
- Fitting an optic does not change whether a gun is a section 1 firearm, a section 2 shotgun or an exempt air weapon.
- Since 29 June 2026, sound moderators for section 1 firearms are no longer firearms in England, Wales and Scotland. Possessing one still requires a firearm or shotgun certificate unless an exemption applies.
- How you use a sight or a lamp is regulated, for example on deer at night and against the protected animals in Schedule 6 of the Wildlife and Countryside Act 1981.
- Northern Ireland has its own firearms law and does not follow the Great Britain rules. Confirm anything that affects you with your firearms licensing department.
Why an optic falls outside the definition of a firearm
Section 57(1) of the Firearms Act 1968 defines a firearm as:
- a lethal barrelled weapon, meaning one that can discharge a shot, bullet or other missile with more than one joule of kinetic energy at the muzzle
- a prohibited weapon
- a relevant component part, meaning the barrel, chamber or cylinder, the frame, body or receiver, or the breech block, bolt or other mechanism that contains the bolt
A telescopic sight is none of those things. Nor is a red dot, a magnifier, a set of mounts or a torch. That is why no police force in Great Britain asks you to list your optics on a certificate, and why a retailer does not ask to see a certificate before selling you one.
What is certificated: FAC and SGC in outline
England, Wales and Scotland share the same two main certificates. The Home Office publishes the Guide on Firearms Licensing Law, which is the reference police forces work from. It was last updated in August 2026.
| Firearm certificate (FAC) | Shotgun certificate (SGC) | |
|---|---|---|
| Covers | Section 1 firearms, such as rifles, and their ammunition | Section 2 shotguns |
| Good reason | The police must be satisfied that you have a good reason for each firearm and its ammunition (section 27) | May be refused only if the police are satisfied you have no good reason. Sport, competition and shooting vermin are good reasons in law (section 28) |
| What is listed | Each firearm, and the ammunition you may buy and hold | The shotguns you hold |
| Conditions | Set by your force. They can include storage, and the land and quarry a rifle may be used on | Set by your force, including storage |
Neither certificate says anything about sights. It describes the gun, the calibre and the ammunition, not the optic on top.
Sound moderators: what changed on 29 June 2026
Until recently a sound moderator was the one accessory that counted as a firearm. Section 57(1) included any accessory "designed or adapted to diminish the noise or flash caused by firing the weapon", so moderators went on certificates.
Section 44 of the Crime and Policing Act 2026 changed that from 29 June 2026 in England, Wales and Scotland. Moderators and flash suppressors are no longer part of the definition of a firearm. However, the same section inserts a new section 2A into the 1968 Act. Under it, possessing a moderator or flash suppressor for a section 1 firearm is an offence unless you hold a firearm certificate or a shotgun certificate, or an exemption applies.
So the moderator no longer has to be entered on your certificate, but you still need to hold a certificate to own one. Police Scotland's notes on the change add two points:
- Existing moderator entries on a certificate have no legal meaning now, and they can stay on the certificate until renewal.
- In Scotland, moderators for air weapons are still controlled under the Air Weapons and Licensing (Scotland) Act 2015.
The Home Office updated paragraph 1.4 and chapter 12 of its guide in August 2026 to reflect the change. Northern Ireland is not covered by the change.
Does fitting an optic change a firearm's legal status?
No. Whether a gun is a section 1 firearm, a section 2 shotgun or an exempt air weapon depends on the gun itself: its bore, barrel length, overall length, action, magazine capacity and muzzle energy. None of those tests mentions the sight. Fitting a 1-6x or 1-10x LPVO to a straight-pull, a red dot to a shotgun or a magnified scope to a stalking rifle reclassifies nothing.
Certificate conditions are a separate matter. Your force sets them and can vary them, so if you are unsure whether something falls within your conditions, ask your firearms licensing department.
UK note
Owning an optic and using it are separate questions. Buying a thermal sight or a lamp is not regulated anywhere in the UK. Pointing either at certain animals, or at deer at certain times, is. The rules also differ between England and Wales, Scotland and Northern Ireland.
Where using a sight or light is regulated
Deer at night
- England and Wales. Section 3 of the Deer Act 1991 makes it an offence to take or intentionally kill deer between the expiry of the first hour after sunset and the beginning of the last hour before sunrise, subject to the exceptions in sections 6 and 8.
- Scotland. Section 18 of the Deer (Scotland) Act 1996 sets the same window, and shooting inside it needs an authorisation from NatureScot.
- Northern Ireland. Article 19 of the Wildlife (Northern Ireland) Order 1985 sets the same window.
Our guide to night vision and thermal law in the UK covers each regime in detail.
Protected animals
In England and Wales, section 11(2) of the Wildlife and Countryside Act 1981 makes it an offence to use any of the following to kill or take a wild animal listed in Schedule 6:
- "any device for illuminating a target or sighting device for night shooting"
- "any form of artificial light or any mirror or other dazzling device"
The Schedule 6 list covers badger, bats, wildcat, dormice, hedgehog, pine marten, otter, polecat, shrews and red squirrel, among others. Scotland's version of Schedule 6 is shorter, because several species were removed from it in 2011. Northern Ireland has its own list, which includes fallow, red and sika deer and hares.
A lamp or a thermal sight is still lawful to own. What is unlawful is using it against those animals.
Scotland and Northern Ireland
Scotland uses the same FAC and SGC system, administered by Police Scotland, and optics are not licensed there either. Scotland adds one extra layer. Since 31 December 2016, Police Scotland requires an air weapon certificate or permit to buy, acquire or possess an air weapon, under the Air Weapons and Licensing (Scotland) Act 2015. That still says nothing about the scope on the air weapon. See air rifle optics and UK law.
Northern Ireland has a separate regime under the Firearms (Northern Ireland) Order 2004, administered by the PSNI. According to PSNI guidance:
- There is no separate shotgun certificate. Shotguns go on a firearm certificate.
- An air gun that can discharge a missile with more than one joule of kinetic energy needs a firearm certificate.
The definition of a firearm in Article 2(2) of the 2004 Order does not mention sights, so optics are not licensed in Northern Ireland either. It does still include accessories that diminish noise or flash, so the 2026 moderator change does not apply there. Take Northern Ireland answers from the PSNI Firearms and Explosives Branch, not from GB guidance.
What a UK retailer needs from you
For an optic, a mount or a light, nothing: no certificate, no dealer transfer and no entry in a register. That is why rifle scopes, red dot sights, weapon lights and handheld torches are delivered like any other goods. The dealer and customs side is covered in buying optics in the UK.
This article explains the legal framework. It is not legal advice. Firearms law is amended often, certificate conditions vary by certificate and by force, and Northern Ireland differs from Great Britain throughout. Confirm anything you plan to rely on with your firearms licensing department (Police Scotland in Scotland, the PSNI in Northern Ireland) or a solicitor.
Frequently asked questions
Do I need a firearms licence to buy a rifle scope in the UK?
No. A rifle scope is not a firearm or a relevant component part under section 57(1) of the Firearms Act 1968, and Northern Ireland's definition does not mention sights either. No certificate is involved in buying, owning or selling one.
Do red dot sights, weapon lights or lasers need a licence?
No. Red dots, holographic sights, magnifiers, lasers and torches all fall outside the statutory definition of a firearm. How you use them on live quarry is a separate question under deer and wildlife law.
Does putting a scope on my rifle change what my certificate allows?
The firearm's classification does not change. Your certificate conditions are set by your force, so ask them if you are unsure.
Do sound moderators still have to go on a certificate?
In England, Wales and Scotland, no longer as an entry, since 29 June 2026. You must still hold a firearm or shotgun certificate to possess a moderator for a section 1 firearm. Northern Ireland and Scottish air weapon moderators are not covered by the change.
Is thermal or night vision licensed?
Owning it is not licensed anywhere in the UK. Using it on deer at night, or on protected species, is regulated, and the rules differ in each nation.
Shop this guide
- Rifle Scopes — magnified glass for stalking, foxing and target work, with no certificate needed to buy
- Red Dot Sights — reflex and enclosed dots for rifles, shotguns and carbines
- Deer Stalking Scopes — scopes with the low bottom end and illumination that suit British stalking
- Weapon Lights — rail-mounted lights from SureFire and Streamlight
