FOX Silencer | Tune Extender | 5.5mm / .22 & 6.35mm / .25 | Black

Tune Extender | 5.5 mm / .22 & 6.35 mm / .25 | FOX Silencer – Thread extension adapter

This extender is a thread extension adapter that mounts between the barrel and suppressor on air rifles. With a 3 cm length and 91 gram weight, it relocates the thread forward to create clearance for mounting accessories when the original thread sits too far recessed.

Construction and materials

The extender is constructed from aluminium with a black finish. It measures 49.5 mm in diameter and 30 mm in length, weighing 91 grams. The unit attaches via a TUNE base mounting system using threaded connections.

Application and use

Designed for air rifle applications in recreational shooting and competition environments. The extender repositions recessed barrel threads forward, enabling proper suppressor or accessory mounting when factory threads are positioned too deep. Also creates the visual effect of an extended barrel profile.

Integration and compatibility

Compatible with air rifles chambered in 5.5 mm / .22 and 6.35 mm / .25 calibres. Mounts using the TUNE base system with threaded attachment. Functions as an intermediate adapter between barrel and suppressor components.

Maintenance and lifecycle

The aluminium construction requires minimal maintenance beyond regular cleaning of threads to prevent binding. Check thread engagement periodically to ensure secure mounting of suppressor components.