Modfather Extension Tube with connector .177 – .22LR 1/2×20 UNF – Precision Airgun Moderators from a company called “3 Legged Thing”
British-designed and built specifically for air weapons.
Available for .177 and .22 calibre airguns with 1/2″ UNF thread fittings, to suit a wide range of rifles and air pistols.
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.
Simply put, fast air makes a noise, slow air doesn’t. This extension tube gives an additional chamber for the air to slow down in before it leaves your gun, in less of a hurry.
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.










