PRG - Muzzle Tuner
PRG – Muzzle Tuner Designed and manufactured in Austria by Performance Rifle GmbH
The PRG – Muzzle Tuner is a high‑precision tuning solution developed for shooters who want to unlock the maximum accuracy potential of their rifle. Designed, engineered, and manufactured entirely in Austria, this product reflects uncompromising quality, technical innovation, and a deep understanding of precision shooting requirements.
Manufactured from corrosion‑resistant stainless steel using advanced metal 3D printing, the PRG – Muzzle Tuner features a geometry that combines structural rigidity with functional efficiency. The surface is corundum blasted and precision turned, resulting in a durable, technical finish that meets the highest mechanical and aesthetic standards.
The Muzzle Tuner allows you to precisely adjust your barrel harmonics to match your specific ammunition. By tuning the natural vibration of the barrel, it becomes possible to significantly reduce dispersion and achieve the smallest possible shot groups. This process enables shooters to consistently extract the best performance from their rifle–ammunition combination, regardless of caliber or discipline.
Installation is intentionally simple and compatible with most commercially available muzzle devices. The tuner is mounted without threads and is clamped directly between the barrel and the muzzle device. During the ordering process, it is essential to specify your barrel thread so that the correct internal bore can be manufactured for a perfect fit.
Adjustment is straightforward and accessible for every shooter. Clamp the PRG – Muzzle Tuner between the barrel and your muzzle device. Fire a five‑shot group at a chosen distance using your preferred ammunition and document the group size. Then loosen the three Allen screws and rotate the tuner to the next marking, always in the same direction. Repeat this process at least five times. By comparing the recorded group sizes, a clear trend will emerge, allowing you to set the tuner to the position that delivers the tightest group. In this way, your barrel is optimally tuned to your ammunition with minimal effort and expense.
The unique design of the PRG – Muzzle Tuner stands out through its technical sophistication. The adjustment markings are deeply engraved into the material, ensuring perfect readability even after years of intensive use. Laser‑etched or printed markings were deliberately avoided, as they tend to fade or wear over time and negatively affect both function and appearance.
The perfect setup is achieved when the PRG – Muzzle Tuner is combined with our PRG – Muzzle Brake Flowmaster Gen. 2. This muzzle brake features a reference marking on its rear face, allowing absolutely repeatable and precise positioning. After cleaning, the exact same mounting position can be restored, saving valuable time and ammunition.
The PRG – Muzzle Tuner is fully rotationally symmetrical and does not require alignment, enabling fast and uncomplicated installation. All components are made from fully stainless, corrosion‑resistant steel and can be safely cleaned using an ultrasonic bath or standard commercial cleaning agents.
Available bore options:
Bore for M18x1
Bore for 5/8‑24 UNEF
Custom bore on request
Optimize your barrel harmonics and elevate your precision—no other product allows you to achieve maximum accuracy more easily. Barell diameter max. 29mm
Scope of delivery: 1 × PRG – Muzzle Tuner
