DonnyFL Yokozuna QD Sound Moderator 187x40mm 1/2 UNF 6.35mm (.25)

The Yokozuna moderator from DonnyFL is a premium, compact, and exceptionally quiet modular suppressor designed for shooters who want maximum noise reduction with minimal added length.

Like DonnyFL’s advanced modular systems, the Yokozuna is engineered for shooters who demand precision, consistency, and adaptability.

Its detachable baffle system allows you to customize the moderator’s length and suppression level, ensuring optimal performance across different setups while maintaining excellent airflow and pellet stability.

Each section is CNC‑machined from high‑grade aluminum, delivering a lightweight, durable, and highly efficient suppressor.

YOKOZUNA: Symbolism and Engineering

The name Yokozuna represents the highest rank in Japanese sumo, symbolizing mastery, strength, discipline, and peak performance.

Inspired by this concept, the Yokozuna was created to deliver top‑tier suppression in a compact, streamlined form.

With a diameter of 40 mm, the Yokozuna combines a slim profile with an internally optimized baffle structure.

The Yokozuna offers broad versatility while maintaining excellent sound performance across all configurations.

Its internal baffle system is engineered to smooth airflow and reduce turbulence, resulting in a cleaner and noticeably quieter report from your air rifle.

Instead of relying on bulky expansion chambers, the Yokozuna focuses on precision‑cut internals to achieve impressive suppression in a compact body.

The rear cap features a 1/2 x 20 UNF thread, ensuring a secure, alignment‑perfect fit and easy installation on most standard air rifle barrels.

Its slim, lightweight construction provides excellent balance on the rifle, making it ideal for shooters who want effective sound reduction without unnecessary bulk.

Why Choose DonnyFL?

Precision engineering: All components are CNC‑machined with strict tolerances for consistent, repeatable performance.

Advanced design: Internal flow paths are optimized to reduce turbulence and improve sound suppression.

High durability: Manufactured from premium materials with robust finishes for long‑term reliability.

Trusted brand: Known for dependable products, excellent quality control and strong customer support.

Modular internal design

Features a removable baffle system that allows you to adjust the moderator’s length and efficiency.

Rear cap 

Equipped with a 1/2 x 20 UNF threaded rear cap for secure and simple installation.

Slim, lightweight construction

The Yokozuna’s narrow profile keeps weight low and maintains excellent handling on the rifle.

Compact dimensions 

Designed to offer effective suppression without unnecessary length or diameter.

What is an Air Gun Moderator

An air rifle moderator reduces noise by redirecting and slowing the air exiting the muzzle. Unlike firearm suppressors, which manage combustion gases, airgun moderators are specifically engineered for pneumatic systems and are designed to moderate sound rather than silence it.

Do Moderators Affect the Accuracy of the Air Gun?

Moderators do not reduce accuracy; in many cases, they improve it by stabilizing airflow and reducing recoil movement. Their weight is minimal and does not negatively affect handling. Heavier rifles also tend to be easier to shoot accurately.

For shooters looking to improve comfort, reduce noise and enhance the overall shooting experience, a moderator like the Yokozuna is an excellent choice.

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