15cc plenum made for the Notos. With this modification, you can expect a higher shot count and a bit more fps. Orings are already installed but spare ones will be included along with the barrel orings. The plenum will move the main air reservoir 45mm forward (you will need clearance).
These are Gen2 plenums, walls are slightly thicker, they are stackable, and will work with drop blocks etc… They are CNC machined from 6061 T6 and black anodized.