The ModFather Airgun Moderator - SpiderWeb
The ModFather Airgun Moderator - SpiderWeb - is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
Delivery
For most UK addresses, orders are sent via Royal Mail First Class or DPD for larger or heavier items.
Delivery typically takes 1-5 working days, depending on the service used. Many orders placed before 12 noon arrive the next working day (Monday-Friday).
Orders over £50 qualify for free shipping to most UK addresses.This excludes shooting products that require Royal Mail 18+ Signed-for Delivery.
Remote Locations (Highlands, Islands & Northern Ireland)
Deliveries to Scottish Highlands, offshore islands, and Northern Ireland may require alternative courier services due to higher delivery costs in these regions.
Small parcels under 350g are sent via Royal Mail and qualify for free shipping if the order value is over £50.
Larger or heavier items are shipped via UPS, and shipping charges will be calculated at checkout, but in most cases it will cost £9.99.
Delivery typically takes 2-5 working days, depending on the service used.
Returns
If you are not satisfied with your purchase, we have a 30-day returns period. In the first instance, please contact our support team via email: support@3leggedthing.com
Royal Mail Deliveries
All orders placed via this website are processed as business-to-consumer (B2C) eCommerce transactions. If you are a business customer requiring business-to-business (B2B) purchasing, please contact us directly prior to ordering.
Got a question?
Got a question?
Just ask, we won't bite...
Contact us here.
The ModFather Airgun Moderator - SpiderWeb
Description
Description
Studio-Grade Acoustic Control
Inside The Modfather is high-density acoustic foam of the same type used in recording studios and radio stations, with a density of 24kg per cubic metre.
This material is specifically chosen to absorb and diffuse sound energy efficiently, helping to reduce sharp muzzle crack and smooth the overall report. When lead particulate build-up eventually occurs, the foam is user-washable, restoring performance without replacing components.
Quiet isn’t accidental here. It’s engineered.
Fully Cosmetically Enhanced
This isn’t a moderator that disappears — it belongs on the rifle.
The Modfather features:
- Three interchangeable exoskeleton designs
- Four inner tube colour options
- Anodised endoskeleton for a premium, engineered finish
Performance stays identical across all cosmetic configurations. The choice is purely visual — match your rifle, your optic, or your personal taste.
It’s functional art. On the muzzle.
One system. Three distinct expressions.
Every Modfather shares the same internal engineering, acoustic performance, and modular capability. The difference lies in how it presents itself at the muzzle. Each exoskeleton is precision-machined to the same tolerances, offering identical strength and airflow characteristics, with a clearly defined visual identity.
Choose the style that suits your rifle, your aesthetic, or your mood.
Slotted
Clean, linear precision with a restrained, technical look.
Chevron
Bold, angular geometry with a modern, dynamic feel.
Spiderweb
Intricate lattice design with a striking, unmistakable presence.
Cap & Thread Options
To ensure optimal performance across calibres and platforms, The Modfather offers multiple cap configurations:
Front Caps
- .177 / .22
- .25 / .30
Rear Caps
- 1/2" UNF
- M14x1.25
- M14x1 LH (CCW) for airsoft platforms
Modular by Design
The Modfather isn’t a fixed system — it’s a configurable platform.
Optional Extension Tube
An optional extension tube adds a third chamber, increasing internal volume and improving airflow management for even greater sound suppression.
It can be configured in three ways:
- Mounted at the barrel end
- Mounted at the muzzle end
- Used independently as a compact stubby moderator
Stackable System
Have more than one Modfather?
Use the extension ring to stack moderators, increasing volume and suppression further for ultra-quiet setups.
Build it short.
Build it long.
Build it absurdly quiet.
PLEASE NOTE These products will be shipped using a method that will require a signature, and proof that you are aged 18+.
As mods are an 18+ product, they require Special Delivery and aren't eligible for free shipping, even on orders over £50. Sorry!
SAFETY WARNING: These products are designed exclusively for use with airguns and are not intended for use with firearms. Any modification, adaptation, or use on a firearm may result in product failure, serious injury, or death. 3 Legged Thing accepts no liability for any damage, injury, or loss arising from the misuse or modification of these products.
TERMS & CONDITIONS: See our T&Cs Section 12 here or Important Legal Information below.
Specifications
Specifications
-
Material
-
Specs
IMPORTANT LEGAL INFORMATION
IMPORTANT LEGAL INFORMATION
Airgun moderators are not a regulated or licensed product in England, Wales, or Northern Ireland and may be purchased without restriction in those jurisdictions.
Customers purchasing from outside England, Wales, and Northern Ireland are solely responsible for ensuring that the purchase, importation, and ownership of these products complies with all applicable laws and regulations in their jurisdiction.
3 Legged Thing accepts no responsibility for any delays, seizures, restrictions, enforcement actions, or other consequences arising from a customer's failure to comply with local laws or regulations.
By placing an order, you confirm that you have verified the legality of purchasing, importing, and owning this product in your jurisdiction and that you are legally entitled to do so.
CUSTOMERS IN SCOTLAND
To comply with Scottish legal requirements, you need to supply proof that you have a valid Airgun Licence. To do this, please provide your licence number, and expiry date in the Add Order Note field in your Shopping Cart before checkout. You can find this bottom left, just above the orange CHECKOUT button.
The pellet leaves first.
On a bare muzzle, the air that fired your pellet catches it. It expands past the speed of sound, overtakes the pellet within a few calibres of the crown, and pushes past it in a plume that's rarely quite symmetrical. Off-centre air, off-centre nudge. The Modfather takes that away.
Schematic — geometry and timing are illustrative, not measured. The plates show the mechanism, not a test result.
Because the Modfather's chambers are large and the air meets them immediately, the expansion happens fast and it happens early. Air that has lost its pressure has lost its speed. By the time the pellet reaches the end cap, the air is behind it and staying there. The pellet exits into air that has already given up most of what it had.
The honest way to put it: the Modfather doesn't make your rifle more accurate. It removes something that was making it less accurate. And it removes the flinch, which on most rifles is the larger of the two variables and stands behind the trigger.
Fitting any moderator adds mass at the muzzle and changes how the barrel behaves. Expect your point of impact to move, and re-zero after fitting or after changing configuration.
Slow the air down and the pellet is simply gone before the air matters.
A bang is just air in a hurry
The same slow-down does the other job. Your rifle isn't loud because of how much air it uses — it's loud because of how fast that air arrives. Release the same air slowly enough and it makes very little sound at all.
All the Modfather is doing is stretching the release. The air still leaves. It just takes long enough that your ears never register an event.
Schematic — illustrates the principle, not a measurement. The shaded area under the curve is the air leaving your barrel. It never changes. Only its shape does.
The pellet is quiet. The air is the problem.
A pre-charged pneumatic makes almost all of its noise in one place, at one instant: the moment the compressed air behind the pellet meets the atmosphere at the crown. It isn't the pellet — the pellet is travelling comfortably below the speed of sound and makes very little noise of its own.
Which is the good news. You aren't fighting several noise sources. You're fighting one. A single, well-understood problem is an engineering problem.
Three mechanisms, one objective
A moderator is not a plug and it isn't a sponge. It's a machine for taking energy away from moving air, and it does it three ways at once. None of them is a trick. All of them are physics, executed carefully.
Give it somewhere to go
Pressure is crowding. Open a big enough room and the crowd stops shoving. The Modfather hands the air 46ml the instant it clears the crown, and 46ml more behind that.
Make it take the long way
Air forced to turn, double back and squeeze through structure loses energy to friction every time it changes direction. It reaches the exit having spent most of what it had on the journey.
Let it turn into heat
Energy can't be destroyed, only moved. Drive a pressure wave through acoustic foam and the structure flexes, drags against itself, and converts that wave into a fractional rise in temperature. The noise doesn't go anywhere. It becomes warmth.
Volume, path and material don't each shave off a slice of the noise. They do one job between them: they slow the air down. Quiet and accuracy are both consequences of the same thing.
Two chambers. 46ml each.
The air clears the crown and falls straight into a volume many times its own. The pressure drops at once — then does it again in the second chamber.
Because the expansion is large and it happens immediately, it also happens fast. The slow-down is essentially complete while the pellet is still inside the tube.
That's the point of the architecture. Not more stages. Earlier ones.
And then there's a third
The extension tube adds another 46ml chamber, identical to the two already there. Total expansion volume goes from 92ml to 138ml — half as much room again for the air to disappear into.
Quieter. And a further chamber's worth of collapse before the end cap means the air is deader still by the time the pellet is clear of it.
Take it off for a walked-up day when you want the shortest package you can carry. Put it back on for the hide. Same moderator, two configurations, thirty seconds between them.
Same air. Taking its time.
The Modfather doesn't hold the air in. It drops it into 92ml of nowhere and lets volume, distance and material finish it off before it can make much of a sound. Quieter is what you hear. Straighter is what you get.
That's the science. The rest is machining.
The Features:
What's in the box?
Your feedback fuels our designs
We design and engineer all of our products in the United Kingdom, and seek ways to innovate in order to create products that photographers love and want to use in their daily workflows.
FREE UK MAINLAND SHIPPING OVER £50
