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SKU: 5.849

UMAREX SD4 Rifle Silencer – Dual-Thread Airgun & Airsoft Moderator

£60.00Price
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Out of Stock

High-performance suppression for serious shooters. Airgun or airsoft—this one does it all.

 

The UMAREX SD4 Silencer is a premium, multi-purpose suppressor designed for airgun and airsoft use. Engineered for maximum efficiency, it features a six-chamber internal design and a precision CNC-machined aluminium body that delivers an impressive sound reduction of up to 25 dB, especially on higher-powered airguns.

 

Whether you're running a .177, .22, or .25 calibre air rifle—or using 6mm BBs in your airsoft rifle—the SD4 delivers serious sound suppression while maintaining a lightweight and durable profile.

 

Dual-Thread Compatibility Included:
To keep things simple, the SD4 ships with two popular thread adapters:

  • ½″-20 UNF (for most air rifles)

  • 14mm CCW (left-hand) (common on airsoft rifles)

 

Please Note:

  • Airsoft users: If your gun has a particularly aggressive hop-up, you may experience BB clipping against the internal baffles.

  • UK customers: This is a working silencer and cannot be posted to your home address, regardless of whether it's being used for airsoft or airgun applications. Collection in-store or RFD transfer only. See our shipping terms for full details.

 

Key Features:

  • Suitable for 4.5mm (.177), 5.5mm (.22), 6.35mm (.25) airguns and 6mm airsoft BBs

  • Dual-thread adapters included: ½"-20 UNF and 14mm CCW

  • Six-chamber internal design for superior sound reduction

  • Fully serviceable: Removable interlocking baffles for easy maintenance

  • CNC-machined aluminium construction with a sleek satin finish

  • Secure screw caps on both ends

  • Ideal for sub-12ft/lb air rifles and mid-level HPA airsoft setups

 

Specifications:

  • Thread Compatibility: ½"-20 UNF & M14 CCW (LH)

  • Calibre Compatibility: 4.5mm to 5.5mm

  • Length: 200 mm

  • Diameter: 35 mm

  • Weight: 190 g

  • Bore Diameter: 8.5 mm

  • Construction: CNC-Machined Aluminium

  • Finish: Satin

  • Serviceable: Yes – user-removable baffle system

 

Quiet, clean, and ready for work. The SD4 is a great upgrade for those who want to tame the bark of their air rifle or airsoft gun—without compromising performance or versatility.

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