3 Legged Thing

Reservoir Mods Single Chambers

Regular price £1199 GBP

The Reservoir Mod Single Chamber is an additional expansion module designed to extend and customise your existing Reservoir Mod system.

Manufactured by 3 Legged Thing, this precision-engineered chamber integrates seamlessly with compatible Reservoir Mods, allowing you to increase internal volume and fine-tune suppression performance.

Whether you're optimising for quieter report, adjusting balance, or configuring your setup for specific shooting conditions, this modular chamber gives you the flexibility to build your moderator to suit your needs.

Color:
Profile

Delivery and Shipping

Delivery

For most UK addresses, orders are sent via Royal Mail First Class or DPD for larger or heavier items.

Delivery typically takes 1-5 working days, depending on the service used. Many orders placed before 12 noon arrive the next working day (Monday-Friday).

Orders over £50 qualify for free shipping to most UK addresses.This excludes shooting products that require Royal Mail 18+ Signed-for Delivery.

Remote Locations (Highlands, Islands & Northern Ireland)

Deliveries to Scottish Highlands, offshore islands, and Northern Ireland may require alternative courier services due to higher delivery costs in these regions.

Small parcels under 350g are sent via Royal Mail and qualify for free shipping if the order value is over £50.

Larger or heavier items are shipped via UPS, and shipping charges will be calculated at checkout, but in most cases it will cost £9.99.

Delivery typically takes 2-5 working days, depending on the service used.

Returns

If you are not satisfied with your purchase, we have a 30-day returns period. In the first instance, please contact our support team via email: support@3leggedthing.com

Royal Mail Deliveries

All orders placed via this website are processed as business-to-consumer (B2C) eCommerce transactions. If you are a business customer requiring business-to-business (B2B) purchasing, please contact us directly prior to ordering.

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Description

Two Profiles. Same Performance.

RSV1 – Wavy Profile
A flowing, organic exterior with subtle contouring. RSV1 offers a softer visual language while retaining the same internal geometry and suppression performance as RSV2.

RSV2 – Chamfered Profile
A sharper, faceted design with clean chamfers and a more technical aesthetic. RSV2 is visually bold but mechanically identical inside.

Profile choice is purely aesthetic — performance remains unchanged.


Single Chamber.

The Single Chamber is an additional expansion module designed to extend and customise your existing Reservoir Mod system.


Why choose Reservoir Mods?

Because effective sound suppression isn’t about brute size — it’s about controlling air intelligently. Reservoir Mods are tuned to manage pressure smoothly, reducing sharp crack without over-damping the system or upsetting the rifle.

Quiet. Controlled. Deliberate.

Specifications

  • Material
    Aerospace-Grade Magnesium Alloy
  • Specs
    • Length: 31mm/1.2"
    • Diameter: 36mm/1.4"
    • Weight: 18g/0.6oz

The Features:

  • Additional modular chamber for Reservoir Mods
  • Increases internal air volume for enhanced suppression
  • Precision-machined for seamless integration
  • Matches 36 mm system diameter
  • Durable construction
  • Designed specifically for air rifle use
  • Available in multiple finishes

What's in the box?


  • Reservoir Mod single chamber of your choice

Your feedback fuels our designs

We design and engineer all of our products in the United Kingdom, and seek ways to innovate in order to create products that photographers love and want to use in their daily workflows.