is a relatively heavy barrel sleeve for small caliber rifles – especially for support shooters. The weight of 310g (incl. a "tuning ring") makes the weapon very quiet due to the inertia and ensures that the muzzle hardly "jumps" when shooting.
Of course, it can also be used for "freehand shooters". Especially good reclining shooters know about the advantages of a running sleeve.
The "tube" extends the barrel by 185mm. This length has proven to be very favorable in terms of shooting performance.
The advantage of a longer sight line additionally favors the hitting performance according to the radiation set! .
The adapter for attachment to the barrel has an inner ring, which must be aligned once in order to quickly ensure exact assembly again and again.
Furthermore, the "TEC-HRO tube support" has a "tuning ring" which can be moved longitudinally in 14 different positions without tools using spring pressure pieces. The displacement of this ring ensures that the barrel vibration is changed during the shot – which in turn influences the shot pattern.
Included in the price is a tuning ring, color of your choice.
Further "tuning rings" (each 20g weight) can be found here