This power plenum is designed for those who want to fine-tune and experiment with their Leshiy 2. Available in two sizes and colors, it provides options for both low and high power configurations, helping you achieve the performance and ergonomics you desire. Whether you’re aiming for increased efficiency at lower power or a boost in energy output for larger calibers, this upgrade is a versatile addition to your setup. Note: Only compatible with the standard regulator — not suitable for the Externally Adjustable Regulator (E.A.R.).

Technical Specifications

• Compatible only with standard Leshiy 2 regulator

• Not compatible with Externally Adjustable Regulator (E.A.R.)

• Two size options:

  • Compact Plenum (110mm / 27cc): Shortens the butt by 2 cm

  • XL Plenum (150mm / 57cc): Extends the butt by 2 cm

• Available in Red and Black

• Original Leshiy 2 plenum: 130mm / 42cc (for comparison)

• XL Plenum delivers up to 4% more velocity and 7% more energy in .25 and .30 calibers, especially with longer barrels (450mm / 600mm) and slugs

• Compact Plenum ideal for low power setups between 12-17 fpe

• For sub-12fpe performance:

  • Regulator pressure should be 60–70 BAR

  • Transfer port reduced to 3.5–4mm

  • Valve timing must be adjusted for fast closure

Inside The Box

• 1x Power Plenum (choose size and color)

• Installation instructions available online

• Link to installation video and tutorials:

  • Installation Guide
  • Wolfiek Group YouTube Channel