The Nielsen Sonic 45 Barrel Tuner is a highly specialised, drop-in accessory designed for precision shooters looking to enhance the accuracy of their rifle. Engineered specifically to integrate with the popular Nielsen Sonic 45 modular suppressor, this component acts as a movable weight system to optimise your barrel's natural harmonic vibrations (the "whip" or "swing" that occurs the millisecond a cartridge is fired).

The tuner threads seamlessly into your existing Nielsen Sonic 45 suppressor, sitting securely between the rear expansion chamber and the front baffle stack. By adjusting the physical weight distribution at the very end of your muzzle, you can manipulate the barrel's harmonics to perfectly match your specific ammunition. When tuned correctly, the projectile exits the muzzle at the exact same point in the barrel's vibration wave every single time, drastically improving your group sizes for target shooting and hunting.

Adding approximately 100 grams of forward weight, this tuner is a favourite among dedicated range, target, and hunting shooters. As a bonus, it extends the internal volume of your suppressor by about 30mm, resulting in a noticeable increase in overall sound attenuation. If you want to keep your setup compact, you can swap out one of your standard baffle modules for the tuner, resulting in a net length increase of only 10mm.

• Harmonic Modulation: Allows you to fine-tune the weight distribution of your suppressor to synchronise with your barrel's vibration, tightening your shot groupings.

• Direct Integration: Threads effortlessly into any standard Nielsen Sonic 45 suppressor—no gunsmithing or permanent barrel modifications required.

• Dual Benefit: Not only does it tune accuracy, but the added internal volume also acts as an extra expansion chamber, increasing the sound reduction of the suppressor.

• Customisable Length: Can be added to your full suppressor stack (adding 30mm) or used in place of a standard module to keep the overall length profile shorter (adding only 10mm).

• Precision Machined: Manufactured by Nielsen Gun Parts in Denmark, ensuring perfect concentricity so your projectile passes through cleanly.