What Is an FAC Air Rifle? Power, Licensing and Legal Use
If you’ve come across the term FAC while doing research on air rifles in the UK and felt unsure what it actually means for you, you’re not alone. The distinction between a standard air rifle and an FAC air rifle comes down to the single legal limit - one that changes not just what you can do with the rifle, but how you’re legally permitted to own it. This article explains where that line sits, what it means in practice, and which shooting applications genuinely call for the additional power an FAC-rated air rifle provides.
What Does FAC Stand For and What Is the Legal Power Threshold?
FAC stands for Firearms Certificate - the official authorisation issued by your local police force that is required to own and use certain classes of firearm in the UK. When applied to air rifles, the term refers specifically to any air rifle that produces more than 12 ft lbs of muzzle energy, which is the maximum power legal limit for an unlicensed air rifle.
That 12 ft lbs figure is not arbitrary. It is established under the Firearms Act 1968 and wider UK firearms law, which sets out the legal classifications for air weapons in England, Wales, and Scotland. Any air rifle producing 12 ft lbs or less at the muzzle is legally classified as an air weapon and can be owned without a licence by adults. Cross that threshold, and the rifle is reclassified as a Section 1 firearm - with all the legal obligations that brings.
The FAC Threshold at a Glance
Air rifles producing up to 12 ft lbs of muzzle energy: no licence required (England, Wales, and Scotland, subject to age and transfer restrictions). Air rifles producing more than 12 ft lbs: classified as Section 1 firearms under the Firearms Act 1968. A Firearms Certificate is required to own and use them.
It is worth noting that a separate threshold applies to an air pistol or other pistol: 6 ft lbs is the limit for unlicensed ownership, even in the typical pellet-fired setup most shooters picture. For the purposes of this article, we are focused specifically on air rifles and the 12 ft lbs boundary that most shooters will encounter when considering a step up in firing power.
How FAC Classification Changes the Legal Status of Your FAC Air Rifles
The practical difference between owning a sub-12 ft lbs air rifle and an FAC-rated one is significant - not because FAC ownership is difficult, but because it involves a formal legal process that does not apply to standard air rifles or fac airguns.
To own an FAC air rifle, you must apply for a Firearms Certificate, often referred to in plain English as a firearms licence, from your local police force, and understand when you need a licence for an air rifle under UK law. The application process involves background checks, an assessment of your stated purpose for owning the firearm, and an inspection of your storage arrangements. You will need to demonstrate a legitimate reason, or good reason, for needing a higher-powered rifle - pest control on land you have permission to shoot over, for example - and show that you can store the rifle securely, as this is essential for approval.
Once granted, your FAC will specify the rifles you are permitted to own, the calibres and power levels authorised, and in some cases the purposes for which the firearm can be used. Under UK law, the rifle is treated as a Section 1 firearm rather than an ordinary airgun, so in legal terms it is a gun subject to the same secure storage, transport, and usage conditions as other Section 1 firearm owners.
- Application made to your local police force
- Background checks carried out as part of the process
- Secure storage must be in place before the certificate is granted
- A legitimate purpose must be stated and accepted
- Conditions on the certificate govern how the rifle may be owned and used
By contrast, a sub-12 ft lbs air rifle requires no certificate to own in England, Wales, or Scotland. Adults can purchase one from a registered firearms dealer face to face without any licensing paperwork, provided they comply with UK rules on who can own and use air rifles. This straightforward legal status is one reason the vast majority of recreational and club shooters never need to consider FAC classification at all.
Not Legal Advice
The information in this article reflects publicly established UK air rifle law and regulation under the Firearms Act 1968, with rules designed to protect the general public through legal control. For individual legal guidance on your specific circumstances, consult a qualified legal professional, review how to get an air rifle licence in the UK, or contact your local police firearms licensing department directly.
Which Types of Shooting Benefit From FAC Maximum Power Levels?
More power does not automatically mean better shooting. For most recreational shooting disciplines - garden plinking, club target shooting, HFT, and Field Target competition - the standard sub-12 ft lbs limit is not a constraint. It is simply the norm, and the equipment designed for it is highly capable, so the added power only brings real benefits in specific use cases.
Where FAC power levels become relevant is in specific applications where energy at the target genuinely matters, particularly when you are making full use of the advantages offered by PCP (pre-charged pneumatic) air rifles. The clearest example is longer-range pest control and hunting. When taking quarry at longer ranges - or when quarry size calls for more decisive energy transfer - an FAC-rated rifle can provide the additional downrange performance that a sub-12 ft lbs rifle cannot, along with the accuracy needed for consistent, accurate shot placement at distance.
Illustrative Scenario
Consider a pest controller managing rabbits across open farmland, where shots may need to be taken at distances beyond what a sub-12 ft lbs rifle handles consistently. In that context, the additional energy delivered by an FAC-rated rifle helps the projectile transfer energy effectively on quarry and is a practical requirement, not a preference. In the right setup, it may also offer extra power and a flatter trajectory, but neither replaces sound range judgment or marksmanship. The FAC classification exists to allow legitimate users with genuine need to access those performance levels - provided they meet the legal requirements to do so.
Outside of pest control and hunting at range, the everyday recreational shooter is unlikely to encounter a situation where FAC power is genuinely necessary. Club target shooting, HFT, and general practice are all conducted well within sub-12 ft lbs limits, and the sport’s governing bodies and competition rules are built around those parameters.
- Longer-range pest control on private land: FAC power can provide greater energy at distance
- Hunting applications where quarry size demands more decisive performance
- Pest control scenarios where shooting conditions - wind, terrain, distance - push the practical limits of sub-12 ft lbs
- Club target shooting, HFT, FT competition, and recreational shooting at paper targets: sub-12 ft lbs is fully adequate and standard
The honest position is this: if your shooting does not take you into pest control or hunting at range, you almost certainly do not need an FAC air rifle. In and around farm buildings or other smaller spaces, close-range pest control is often handled perfectly well with sub-12 ft lbs setups. The legal and administrative obligations involved are not burdensome for those with genuine need, but there is no practical benefit in pursuing full power FAC classification without a clear application that justifies it.
FAC-Configurable PCP Rifles: How the Air Arms S510 Tactical Fits In
One of the more practical questions that arises around FAC air rifles is how a shooter with legitimate need actually acquires one while staying within current UK air rifle laws. The answer, in many cases, is through a PCP platform specifically designed to accommodate both sub-12 ft lbs and FAC-rated configurations within the broader category of high powered air guns.
The Air Arms S510 Tactical is a strong example of this approach, while keeping its own distinctly British design character. Built on the award-winning S510 platform and developed with over 40 years of British engineering expertise at Air Arms’ UK manufacturing facility, the S510 Tactical is a modular, regulated PCP air rifle designed for versatility across a range of applications. It can be configured for FAC use, making it a capable choice for shooters who hold, or intend to hold, a Firearms Certificate for higher-powered use.
Its regulated action supports consistent shot-to-shot performance and improved shot count - an important quality when shooting at distances where precision and energy delivery both matter. The modular design allows shooters to adapt the platform to their specific needs, whether that means varying calibre, barrel setup, stock configuration, or accessory setup for field use.
That flexibility also means FAC shooters may choose suitable ammunition according to legal use and rifle setup.
How FAC Configuration Works
A rifle like the S510 Tactical is not sold as a single fixed configuration. FAC-rated variants are set up to produce power levels above the 12 ft lbs standard threshold. Any purchase of an FAC-configured rifle must be made by a holder of a valid Firearms Certificate specifying that rifle, calibre, and power level. Your registered firearms dealer will guide you through the correct process.
Importantly, the S510 Tactical’s underlying platform is the same whether configured for sub-12 ft lbs or FAC use. This means a shooter who later obtains an FAC and wants to move into higher-powered shooting can work within a trusted, quality-built, familiar platform rather than starting from scratch. Air Arms backs new rifles with a 3-year warranty and, in line with its promise of quality and support, provides dedicated aftersales support through its authorised dealer network.
The Responsibilities of FAC Air Rifle Ownership Versus Sub-12 ft lbs
Understanding the difference in legal responsibility between the two classifications is important - not to make FAC ownership sound daunting, but to help you make an informed decision based on the knowledge needed to understand whether it applies to your situation.
A sub-12 ft lbs air rifle can be purchased, transported, and used for lawful purposes by a UK adult without any licence. You are subject to the usual legal obligations around safe use and storage, but there is no formal certification required. This simplicity is why most recreational shooters operate exclusively within this category throughout their shooting life.
FAC air rifle ownership comes with additional structure. Once your Firearms Certificate has been granted, you are responsible for maintaining compliance with its conditions - which typically include:
FAC Ownership Responsibilities
- Storing the rifle securely in an approved cabinet or safe when not in use
- Transporting the rifle in a manner that prevents unauthorised access
- Using the rifle only for the purposes stated on your certificate
- Notifying the police of any change in your circumstances that may affect your suitability to hold a certificate
- Renewing your FAC in line with the conditions set by your licensing force
A suitable scope and a stable rest may also form part of a responsible setup for accurate use, but lawful handling remains the priority.
None of these requirements are unreasonable - they mirror the conditions applied to all Section 1 firearm holders. For shooters with a genuine, lawful application, the process is straightforward and well-established. The important thing is to approach it properly: through your registered firearms dealer, with your storage in place, and by becoming familiar with safe handling through a formal shooting course or club instruction, with a clear statement of purpose ready for your application.
Speak to a Registered Dealer First
If you are considering whether FAC classification is right for your shooting, your first conversation should be with a registered firearms dealer. They can advise on whether your application and intended use align with what a licensing force is likely to grant, and guide you through the process correctly from the start. That can be especially relevant for pest controllers, or for lawful pest-bird control where any reliance on general licences must match the applicable regional rules.
The bottom line is clear. FAC air rifles are not inherently complicated to own - they simply require the right legal framework to be in place before you acquire one. If your shooting takes you into territory where the additional power is genuinely useful, the process exists to accommodate you. If it does not, a high-quality sub-12 ft lbs PCP rifle is everything you need to shoot accurately, confidently, and legally.
Explore the Air Arms Range for Longer Range Shooting Application
Explore the Air Arms Range for Your Shooting Application
Whether you’re shooting sub-12 ft lbs or exploring FAC-rated options, Air Arms builds precision PCP and spring rifles for every legitimate application - all backed by over 40 years of fine British engineering expertise and a 3-year warranty, so browse the full Air Arms rifle range at air-arms.co.uk to find the right platform for a shooting world that spans hunting, pest control, and range use.
