DonnyFL Fatboy 2.0 Airgun Moderator





DonnyFL Fatboy 2.0 Airgun Moderator – Maximum Sound Suppression for High-Power PCP Air Rifles
The DonnyFL Fatboy 2.0 is designed for shooters looking for maximum sound suppression without compromising durability or precision. Its large diameter and advanced internal baffle system make it an excellent choice for high-power PCP air rifles where a standard moderator offers limited noise reduction.
With a compact overall length of just 108 mm (4.25") and a 50.8 mm (2") diameter, the Fatboy provides an excellent balance between compact dimensions and outstanding sound suppression. The increased internal volume effectively reduces muzzle noise while keeping the overall rifle length manageable.
Manufactured from precision CNC-machined aluminium and finished with a durable black anodised coating, the Fatboy combines lightweight construction with excellent strength and corrosion resistance, making it suitable for intensive use.
One of the key advantages of the DonnyFL Fatboy is its modular design. An optional DonnyFL Extender can be fitted to increase the internal volume for even greater sound suppression. An optional DonnyFL Muzzle Brake is also available and mounts to the front of the moderator, giving it a distinctive appearance while helping to optimise the airflow exiting the moderator.
The DonnyFL Fatboy is available for multiple calibres and can be installed on a wide variety of PCP air rifles using the appropriate DonnyFL adapter.
Key Features
- Designed for maximum sound suppression
- Ideal for high-power PCP air rifles
- Compact 108 mm (4.25") overall length
- Large 50.8 mm (2") diameter
- Precision CNC-machined aluminium construction
- Advanced internal baffle system
- Durable black anodised finish
- Lightweight yet robust design
- Compatible with the optional DonnyFL Extender
- Compatible with the optional DonnyFL Muzzle Brake
- Fits various DonnyFL adapters (depending on rifle configuration)
Technical Specifications
- Brand: DonnyFL
- Model: Fatboy 2.0
- Type: Airgun Moderator
- Material: CNC-machined aluminium
- Finish: Black anodised
- Length: 108 mm (4.25")
- Diameter: 50.8 mm (2")
- Weight: Approx. 191 g
- Application: PCP air rifles
- Available calibres: .177 to .30 (Comes with multiple caliber inserts)
- Mounting: 1/2"x20 UNF thread
- Optional accessories: DonnyFL Extender and DonnyFL Muzzle Brake
Why Choose the DonnyFL Fatboy 2.0?
The DonnyFL Fatboy 2.0 is one of the most popular moderators for powerful PCP air rifles. Its large internal volume and efficient baffle design provide excellent sound suppression without adding unnecessary length to the rifle. Precision CNC machining and high-quality aluminium ensure long-lasting reliability and consistent performance.
Its modular construction offers additional flexibility. The optional Extender increases the moderator's internal volume for even greater noise reduction, while the optional Muzzle Brake mounts to the front of the moderator, providing a distinctive finish and improved airflow management. This allows shooters to configure the Fatboy according to their own preferences and shooting setup.













