3 Legged Thing  |  SKU: MDF-EXT

The ModFather Extension Tube with connector

Regular price €7037 EUR

Refined volume. Precision machining. Elevated silence.

The Modfather Extension Tube is a beautifully crafted modular expansion for the Modfather system, designed to increase internal volume and further refine airflow management for enhanced sound suppression.

Machined with the same care and intent as the Modfather itself, the extension integrates seamlessly into the system, adding an additional chamber that gives expanding air more space to slow, stabilise, and dissipate before it exits the muzzle.

It’s a subtle addition with a meaningful impact.

Delivery and Shipping

ALL EU CONSUMER ORDERS NOW SENT DUTY PAID – NO ADDITIONAL DELIVERY FEES

Delivery

Depending on the size and weight of the product, deliveries to EU countries will be via Royal Mail International Tracked & Signed For, or UPS for larger or heavier items. Orders over 150 € qualify for free shipping. We dispatch parcels the same day Monday to Friday for orders placed before 12 noon.

Customs

All orders are sent with duties paid by us, so you should not receive any requests for payment at the point of deliver. If you receive a request for payment from your courier, please contact support@3leggedthing.com and provide a copy of the request you have been sent together with your order number.

VAT Invoices for Businesses

We do not charge VAT on your purchases. If you require this for your business, we recommend purchasing direct from a retailer in your local area. Find your nearest retailer here: https://3leggedthing.com/en-eu/pages/store-locator, or contact our Distributor Disnet: https://www.disnet.nl/english

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 see VAT Invoices for Businesses above.

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Description

Combined Capacity

  • Modfather alone: 0.09 litres
  • Modfather + Extension: 0.13 litres

That increase in volume delivers smoother airflow and noticeably improved sound reduction, particularly in noise-sensitive environments.


Engineered Acoustic Control

The extension tube houses a single high-density acoustic foam cylinder, using the same studio-grade material found in recording studios and radio stations.

With a density of 24kg per cubic metre, the foam is designed to absorb and diffuse sound energy efficiently. It is user-washable when lead particulate build-up requires maintenance, ensuring long-term, consistent performance.


Integrated Modular Design

The Modfather Extension Tube is supplied as a complete, ready-to-configure module, including:

  • Tube connector
  • Anodised endoskeleton
  • Inner Cage
  • Studio-grade acoustic foam insert

It can be:

  • Added to a Modfather to extend the system
  • Mounted at the barrel end or muzzle end
  • Used independently as a compact moderator(Requires caps from Modfather)

The system adapts to your rifle, your environment, and your priorities.


Design & Finish

The extension tube features a clean, purposeful exterior, precision-machined for strength, alignment, and visual harmony with the Modfather range.

Finished exclusively in our unique darkness black, it delivers a restrained, engineered aesthetic that complements any Modfather configuration while keeping the focus on performance and craftsmanship.

Specifications

  • Material
    Aerospace-grade Magnesium Alloy
  • Specs
    • Length: 12cm/4.7"
    • Diameter: 45mm/1.77"
    • Capacity: 92ml/3.2floz
    • Weight: 222g/7.8oz

The Features:

  • Adds 0.038 litres of internal volume
  • Increases total system capacity to 0.13 litres
  • Single-chamber airflow expansion
  • Studio-grade, washable acoustic foam
  • Precision-machined construction
  • Seamless integration with the Modfather system
  • Modular mounting options

What's in the box?


Modfather Extention Tube:

  • Connector
  • Inner Cage
  • Foam Insert
  • Slotted Exoskeleton

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.